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Boston Celtics win 2024 NBA championship: Franchise clinches historic 18th title beating Mavericks in Game 5

The Boston Celtics are the 2024 NBA champions. The Celtics clinched a record-setting 18th title in franchise history and their first since 2008 on Monday night with a 106-88 Game 5 win over the Dallas Mavericks. Jayson Tatum starred in Game 5 for Boston, finishing with 31 points and 11 assists as he won his first ring. Jaylen Brown added 21 points in the closeout victory and was named Finals MVP. The 18 titles are the most in NBA history as Boston passed the Los Angeles Lakers, who won their 17th title in 2020.

Boston was the best team in the NBA all season long. The Celtics won 64 games in the regular season and then went 16-3 in the playoffs, capping that run by taking down the Mavericks, 4-1, in the 2024 NBA Finals.

The title comes exactly 16 years after the Celtics' last championship, which they won on June 17, 2008. Led by Tatum and Brown, the Celtics have been mainstays in the Eastern Conference finals in recent years (they've made six of the last eight ECFs), but this was just the second Finals appearance for the Celtics in the Tatum/Brown era. The fell short in the 2022 NBA Finals against the Golden State Warriors, but would not be denied in 2024.

The championship is the first in the 17-season career of forward Al Horford. The longtime Celtic played in 186 playoff games before capturing his first title. Only Karl Malone had played in more postseason games without winning a championship.

The title is the second in four years for Jrue Holiday, who the Celtics acquired in a preseason trade after the Bucks dumped Holiday in a deal to land Damian Lillard. Holiday did a little bit of everything in the Finals, including 15 points, 11 rebounds and four assists in Game 5.

Holiday also played strong defense on Dallas stars Luka Doncic and Kyrie Irving, who were held to 14 first-half points on Monday night. Doncic finished with a team-high 28 points in the season-ending loss, and the Slovenian superstar will continue searching for his first NBA title after leading the fifth-seeded Mavs to their first Finals in 13 years. 

Irving, meanwhile, struggled in Boston. The ex-Celtic scored 15 points in Game 5, but he averaged just 14.3 points in the three Finals games at TD Garden -- all Dallas losses.

Here are four key takeaways from the title-clinching Game 5:

Tatum and Brown finally climb the mountain

Jayson Tatum and Jaylen Brown have been together since 2017. In those seven seasons, they have never missed the playoffs, made five Eastern Conference finals and two Finals, and played 107 postseason games together, the most by any duo without a title. 

At least until Monday night. 

Finally, after so many years of playoff heartbreak, after countless calls to break them up, and after relentless debate about whether they were good enough to win it all, they lifted the Larry O'Brien Trophy. They are NBA champions and Celtics legends, and they did it together. 

Watching a duo like Tatum and Brown complete their journey is what sports is all about. 

Brown claims Finals MVP

When Jaylen Brown was drafted as the No. 3 overall pick in 2016, the Celtics fans inside TD Garden for a watch party booed the selection. Nearly eight years later, those same fans were losing their minds in the complete opposite manner as they watched him lift the Bill Russell Finals MVP trophy. 

Brown has so often played second fiddle to Tatum over these years, but not anymore. He was the Eastern Conference finals MVP and now the Finals MVP, joining the likes of John Havlicek, Larry Bird and Paul Pierce as Celtics icons to earn that honor. 

Tatum closed the gap with a brilliant Game 5 performance to close out the series, and the voting ended up being 7-4 in favor of Brown. In the end, his consistency and two-way effort were enough to sway the voters. He averaged 20.8 points, 5.4 rebounds, and five assists over the five games, while also taking on the primary responsibility for guarding Luka Doncic. 

Horford gets his ring

Al Horford was the No. 3 overall pick in the 2007 NBA Draft. Over those 17 seasons he's made five All-Star Games, one All-NBA team and one All-Defensive team, and played in 186 playoff games -- the second-most by any player without a ring. 

Finally, he is an NBA champion. Horford first arrived in Boston in 2016 as a free agent and spent three seasons with the team before signing an ill-fated deal with the Philadelphia 76ers. After a two-year sojourn in Philly and Oklahoma City, the Celtics brought Horford back in 2021. 

That was one of the first big moves by Brad Stevens after he became the team's president of basketball operations, and it proved to be one of his wisest. The ever-steady Horford has been a key presence on the Celtics' rise and ended up starting the majority of the games in this postseason due to Kristaps Porzingis' injury. 

Late in Game 5, Joe Mazzulla subbed Horford out of the game to give him a well-deserved standing ovation. 

Mazzulla makes history

Shortly before the 2022-23 season, the Celtics named Joe Mazzulla their interim head coach while they investigated Ime Udoka for multiple policy violations. By February of that season, he was officially named the head coach and led the team to the Eastern Conference finals. 

Despite some calls for his job following the Celtics' surprise exit at the hands of the No. 8 seed Miami Heat, Brad Stevens was committed to Mazzulla. That proved to be the correct decision, as Mazzulla used his unique style to guide the team to their first 60-win season since 2009, and their first title since 2008. 

With the Game 5 win, the 35-year-old Mazzulla became the youngest head coach to win a title since Bill Russell in 1969. 

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FINAL: Celtics 106 -- Mavericks 88

It's all over. At long last, the Boston Celtics have captured Banner No. 18 and regained their place atop the NBA. 

This one was never truly in doubt, as the Celtics built a nine-point lead at the end of the first quarter and pushed the advantage to 21 points at the end of the first half on another halfcourt buzzer beater by Payton Pritchard. They led by double-digits the rest of the way thanks to a dominant defensive effort. 

Jayson Tatum, who had not been at his best in the first two games, stepped up in a major way to secure his first title. He finished with 31 points, eight rebounds and 11 assists. Jaylen Brown, meanwhile, went for 21 points, eight rebounds and six assists. 

This is the first title for Tatum and Brown, and the Celtics' first since 2008. They now once again have the most titles in NBA history. 

June 18, 2024, 3:03 AM
Jun. 17, 2024, 11:03 pm EDT
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Tatum may have put it away

Jayson Tatum has shown up in a major way tonight, and may have just put the game away with a big-time stretch late in the fourth. He's scored nine of their last 11 over the last three minutes to push their lead up to 24 points with 4:39 remaining. Tatum now has 29 points, seven rebounds and 11 assists. 

June 18, 2024, 2:46 AM
Jun. 17, 2024, 10:46 pm EDT
 
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Third quarter: Celtics 86 -- Mavericks 67

Early in the third, it appeared the Celtics might run away with this one, but the Mavericks were able to stem the tide. That being said, they only ended up winning the third by two points despite the Celtics shooting 7-of-24 in the frame. The Mavericks did make a huge comeback from this spot in Game 3, but can they do the same on the road?

Jayson Tatum has 20 points, six rebounds and 10 assists to lead the way for the Celtics, while Luka Doncic has 18 points and 11 rebounds to power the Mavericks, but is just 8-of-19 from the field. 

June 18, 2024, 2:27 AM
Jun. 17, 2024, 10:27 pm EDT
 
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Celtics pushing the lead out

The Celtics ended the first half in style and have started the second half in the same vein. They've pushed the lead up to 26 points inside the first few minutes to force a timeout from Jason Kidd. The Mavericks are going to need a big response here in the next few minutes to keep this from getting way out of hand. 

June 18, 2024, 2:06 AM
Jun. 17, 2024, 10:06 pm EDT
 
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Halftime: Celtics 67 -- Mavericks 46

The Celtics dominated the second quarter to push their advantage up to 21 points at the break. Jayson Tatum is leading the way with 16 points, four rebounds and nine assists, while Jaylen Brown has 15 points and Jrue Holiday has added 11 points and six rebounds. 

The biggest play of the half, though, came right at the very end when Payton Pritchard drilled a halfcourt shot to beat the buzzer and send the TD Garden into a state of hysteria. This is the second time in the series that Pritchard has hit a shot to end a quarter. 

 
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Tatum stepping up

Jayson Tatum got off to a slow start from a scoring perspective, but he's heating up here in the second quarter. After a tough and-one to push the Celtics' lead up to 15 points, he now has 11 points, four rebounds and seven assists. He's either scored or assisted on 11 of the Celtics' 17 field goals. 

 
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First quarter: Celtics 28 -- Mavericks 18

The Celtics closed the first quarter on a 9-0 run to push their lead to double digits after the first 12 minutes. Neither team has been shooting the ball well, but the Mavericks have had a tougher time. They're just 7-of-20 from the field and have turned it over four times. 

Jaylen Brown and Jrue Holiday each have six points to lead the way for the Celtics, while Jayson Tatum has four points, three rebounds and four assists. 

 
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Porzingis struggling to move

Kristaps Porzingis checked in early in the first quarter, but he is not moving well at all and the Mavericks have been taking advantage of him over and over again. They didn't have much going offensively early on, but since Porzingis has been in they've created a number of open looks because he doesn't have any agility. It will be interesting to see how much more Porzingis plays. 

June 18, 2024, 12:58 AM
Jun. 17, 2024, 8:58 pm EDT
 
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Celtics off to a strong start

The Celtics have jumped out to an early 9-2 lead thanks in large part to Jrue Holiday. He has six of their points and has led the way on the defensive end, where they've stifled the Mavericks so far. Dallas is just 1-of-9 from the field so far with a turnover. 

June 18, 2024, 12:47 AM
Jun. 17, 2024, 8:47 pm EDT
 
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Boston crowd gets ready for Game 5

 
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Kyrie on Boston

Mavs star Kyrie Irving was asked again about Boston as the series heads back to TD Garden for Game 5. The ex-Celtic had an interesting comment and told players who are thinking about signing with the Celtics to "do their homework."

"You just expect to have a magnifying glass on you everywhere you go," Irving said. "I don't think Boston appreciates being kind of second class to New York, in terms of the media capital of the world. But this is a media capital of the world, as well. There's a lot of history here off the court. The community's integrated into the Celtics team, that's probably the best way I can say it. The community is what makes the Celtics great here. The Boston pandemonium, that's what makes this space so loud and so special, and they take pride in it. If any player is coming here getting drafted, or you're thinking about coming here in free agency or getting traded here, I just think do your homework, and make sure you know what you're getting yourself into."

Here's more:

Kyrie Irving explains why players should 'do their homework' before signing with Celtics
Jasmyn Wimbish
Kyrie Irving explains why players should 'do their homework' before signing with Celtics
 
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Celtics vs. Mavericks Game 5 info

We're closing in on tip-off at TD Garden in Boston. Here's what to know about Game 5.

Time: 8:30 p.m ET | Date: Monday, June 17
Location: TD Garden -- Boston
TV channel: ABC | Streaming: fubo

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Mazzulla says 'expect to see' Porzingis in Game 5

Celtics coach Joe Mazzulla said we "can expect to see" Kristaps Porzingis, who has not played since Game 2 due to a rare lower leg injury, on Monday night. It remains to be seen how much the big man will play, but Mazzulla added that he has no minutes restrictions on Monday night.

Here's a look at Porzingis' extensive pre-game routine:

Porzingis has not played since Game 2 eight days ago. He was ruled out for Game 3 last Wednesday. On Friday, he dressed for the Celtics and was considered "available" off the bench. However, he did not play as Boston was blown out.

June 17, 2024, 11:25 PM
Jun. 17, 2024, 7:25 pm EDT
 
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Porzingis 'available' for Game 5

Just like Game 4, Kristaps Porzingis will be "available" for the Celtics tonight. What that means remains to be seen. Porzingis has not played since picking up a rare foot injury in Game 2 eight days ago. He was out for Game 3 and dressed for Game 4, but was not summoned off the bench in a blowout loss.