Johnson spent six seasons with Toronto. He appeared in 75 games last season and averaged 9.3 points and 6.5 assists in 26.4 minutes per game.
Jerebko, who arrived via trade from Detroit in February, finished the year averaging 7.1 points in 18.2 minutes per game. His playing time increased after he joined Boston.
The team disclosed terms of neither deal.
Jerebko played more extensively late last season after arriving from Detroit. He finished the year averaging 6.0 points in 17 minutes per game.
"He's been the best coach I've had in the NBA," Jerebko said. "He leads this team very well, and he's a great coach, so he definitely weighs in a lot."
Jerebko played under four coaches with the Pistons in five-plus years before being dealt to the Celtics this season. He was able to play in the postseason for the first time in his career, and though the Celtics were swept, he indicated that the playoff experience meant a big deal for the young team.
"For a lot of guys being in the playoffs for the first time, now we know during the season where we want to be at," Jerebko said. "You don't want to be outside the playoffs when the season's over, because we want to be in this next year, and we want to take it further than we did last year. It makes the season important. Sometimes, you forget that every game matters. We want to do this again. I haven't felt like this in all my years in the league. I've had my ups and downs in this league, and making the playoffs with this team really gave me some motivation, and I just want to get back and get there again."
Jerebko averaged 7.1 points, 4.8 rebounds and 18.2 minutes in 29 games with the Celtics.
After being limited to just four minutes during the Game 2 loss to the Cavaliers because of a calf injury,
Jerebko admitted that the injury affected his play in Game 2. Game 3 will be held Friday in Boston and the Celtics are 5-point underdogs.
However, Jerebko's injury is getting better, and Stevens suggested that he would see more playing time in a critical Game 3 on Thursday.
|Last 7 Games|
|Complete Game Log|
| 25 || 26 || 27 || 28 |
| 29 || 30 |
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| 5 || 6 |
|Career Shooting Stats|
|More Postseason Stats|
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