Good thing for the Boston Celtics they had reserves to fill those roles.
Posey, whose main role is defense, made four 3-pointers and finished with 18 points. House added 11 points.
Even when the Celtics fell behind by 24 points in the first half, they weren't forced to overuse their starters in an effort to get back because their reserves were playing so well.
"They can't play 48 minutes and guys like Leon (Powe), Eddie, James Posey, we've got to be ready to play, to give them guys a little blow because they're going to need to be fresh in the crucial moments of the game," reserve forward P.J. Brown said.
Rondo made it 17 minutes on his sore ankle. Perkins played only 13 minutes after straining his left shoulder early in the third quarter.
House played a key role when Rondo was hurt in Game 3 and had a bigger one in this game. He started slowly, like his team, but his jumper with 4:07 remaining gave the Celtics their first lead, 84-83.
"If you don't take the next one, you can't make the next one, so that's what I do, I shoot the basketball," House said. "I'm not going to let them take me out of my game myself by just missing shots. So they were open shots, they were good looks they were my shots, so I just continue to take them."
Boston's reserves outscored the Lakers' 35-15.
Pierce a legend?
Paul Pierce will probably finish his career with the Celtics as one of the top five players statistically in franchise history. Coach Doc Rivers is uncertain whether a championship would mean the 6-foot-7 forward from nearby Inglewood would be considered in the top tier of the team's legends.
"I don't know. I don't pay much attention to it," Rivers said. "Obviously if you're a Celtic, the championship helps put you in a different level because they've set the standard of winning. So if you're going to be a Celtic, winning has to come with being a Celtic."
Boston has won an NBA-best 16 championships, but it's been 22 years since their last one -- in 1986, when Larry Bird, Robert Parish and Kevin McHale led the way. The Celtics lost to the Lakers in the Finals the following year, and hadn't been back since until this year.
Sasha Vujacic, who scored a career playoff-high 20 points in the Lakers' 87-81 Game 3 victory, got an assist from the longtime director of the Laker Girls midway through the season.
Lisa Estrada noticed Vujacic was constantly wiping his shaggy hair out of his eyes during games, so she made a few suggestions to remedy the situation.
Vujacic decided on a black suede hair band, and it's done the job just fine.
Rondo has a blog, where he has been updating the status of his injured left ankle that he said was OK heading into Game 4. Asked about the blog, Rivers drew chuckles when he said, "I have one. Nobody knows about it."
"Yeah, it's definitely different generations," Rivers added. "Guys like them, so I don't get in the way of them, so long as what goes on in Vegas stays in Vegas, if you know what I'm saying?"
Rondo's blog has included other thoughts on his first appearance in the playoffs as well.
The postings update his fans on his naps and trips to various malls and frequently end with, "I'll holla!" But Wednesday night's entry included information on the ankle injury that kept him out of practice that day.
Kobe's a team player
With Tiger Woods competing in the U.S. Open in the San Diego area, Jackson was asked if he could ever imagine Kobe Bryant trying an individual sport, where he wouldn't have to be concerned with teammates.
"No, I don't think so," Jackson said. "I think the only other sport that truly is dear to Kobe would be soccer, but it's not an individual sport."
Michael Jordan tried baseball for a couple of years in the 1990s, but was a flop. Jackson and Jordan teamed to win three NBA championships before Jordan left, and three more after he returned.
All about defense
Surprisingly, though, the team's focus from the start has been on defense.
"It had to, because if it didn't, we wouldn't be here," Rivers said. "It started the first day. Right after the big press conference, we sat in the back and we talked, had a long talk, and the only thing I brought up was defense. It was great because Kevin Garnett was the guy standing up saying, 'Listen, he's right. We're not going to win unless we can play defense and commit to it.'"
Grammy Award-winning singer Ashanti will perform the Star-Spangled Banner on Sunday night before Game 5. All national anthem performances during the NBA Finals will be televised live in the U.S. and to a worldwide audience in more than 200 countries and territories.