BOSTON – The Celtics may be struggling on Fridays this season, but they’ve rebounded in time to show their Sunday best.

After losing their fourth Friday night game, the C’s improved to 4-0 on Sundays with a 122-104 victory over the Timberwolves. (Recap.)

The Celtics dominated the game from the start, scoring a season-high 34 points in the first quarter while holding the Timberwolves to just 19 on seven field goals (28.0 percent). The C’s finished the night shooting better than 50 percent for the 13th time this season.

Paul Pierce shot a perfect 6-for-6 from 3-point range to lead all scorers with 29 points. His flawless performance tied a franchise record previously held by Walter McCarty (Nov. 2, 1999 vs. Toronto) and Danny Ainge (Jan. 4, 1988 vs. Utah).

One of the Celtics’ biggest advantages was not only their offense — Al Jefferson and Jonny Flynn both scored 20-plus points for the Timberwolves en route to a night of more than 100 points for Minnesota — but rather their team play. Rajon Rondo dished out 15 assists, compared to Flynn's two, finding his teammates for the open shots.

That's what happened on the court. Here are three things we learned from inside the locker room:

SHEED WON'T CHANGE HIS GAME

Rasheed Wallace won't say directly whether or not he felt targeted by officials on Friday night, but one thing is clear — he isn't about to change for anyone.

Wallace was whistled for a series of quick fouls in Friday's game against the 76ers. He was eventually tossed by referee Bill Kennedy during a timeout in the second quarter. He did not appreciate how close Kennedy stood to the Celtics huddle during the break.

“If they’re standing right near our huddle trying to stick their ear or nose in there, then yeah, they’re going to hear some stuff,” he said following Sunday's game. “That’s exactly what it was. When have you ever seen somebody — a ref — standing over there that close to our bench during a timeout? You already know what it is. I ain’t tripping.”

Regardless of how many technicals he has been called for this season (he's up to 10), Wallace isn't going to alter how he plays basketball.

“I’ll still play my game. I’ll still be me,” he said. “I ain’t changing my game for nobody. I ain’t changing nothing for nobody.”

But his technicals can change how the Celtics play. Wallace has been the driving force of the second unit this season. The team missed his defensive presence on the boards when it squandered a 15-point lead to lose by one to Philly in the final seconds.

Wallace, however, does not think his fouls are a detriment to the team.

“We're still a good ballclub,” he said. “It don't matter. We're still a good ballclub. We'll still go out there and do what we've got to do to win.”

T.A. CONTINUES TO IMPROVE

Tony Allen showcased the play of the game with a one-handed dunk over Corey Brewer off a behind-the-back pass from Eddie House. Allen initially intended to lay it in, but decided to dunk when he realized how fast Brewer was running toward him.

“I was pretty happy after that,” Allen said after the game. “It actually motivated me throughout the game. I was talking all throughout the game, defensively, and it did give me an extra boost.”

The jam was a throwback to Allen circa 2006, before he blew out his knee on a post-whistle dunk. Former teammate Al Jefferson knows the high-flying version of Allen well and was happy to see him back in action.

“It was perfect, man,” Jefferson said. “It's good to see him. T.A.'s been fighting with injuries his entire career. One thing he has proved to me and the whole league, he will bounce back.”

But after watching Allen fall to the ground with a torn ACL and MCL, isn't it a little nerve wracking to see him get up like that?

“No I don't get nervous,” Jefferson said with a laugh. “I was just like, 'Wow.' I haven't seen a man just take off on people like that and dunk in a minute, even though it was on Corey.”

The dunk was just one of the many high points in Allen's game. In addition to scoring 15 points (5-8 FG), he got to the line seven times by using screens from his teammates, grabbed six rebounds, and dished three assists.

Allen understands his role on the Celtics and can prioritize which stats mean more to him.

“The rebounds, anything defensively,” he said. “My job is to be a defensive guy and I came through tonight.”

THE STUDENT HAS BECOME THE TEACHER IN MINNESOTA

At just 24, Al Jefferson is one of the most experienced players on the Timberwolves. Despite being younger than half of his teammates, he is the face of the organization and the driving force of his squad.

Jefferson's leadership abilities can be traced back to his days in Boston. He was drafted out of high school by the Celtics in 2004 and played with a handful of veterans before the youth movement in 2006-07.

“I was around guys my rookie year like Gary Payton, Antoine [Walker], Paul [Pierce], even Ricky [Davis],” he said. “So I've been around some good vets. I even got the chance to play with Tom Gugliotta a half a season. He was one of the best guys I know. So that helped me out a lot, coming in being one of the veterans on this team even at the age of 24 years old.”

Former teammate and close friend Kendrick Perkins is not surprised by Jefferson's role on the Timberwolves. Perkins once likened Jefferson to his quarterback and knew Jefferson was always looking out for him on the court.

“I think he's just a good-hearted guy,” Perkins said. “He's a good teammate as far as since he's the captain on the team. He'll tell you what you're doing wrong but other than that, he'll pick you up. Off the court he'll do leadership things. That's the main thing that separates him.”

Perkins can't help but sympathize with Jefferson as he leads a losing team. The days of a 24-win season may be gone but are not forgotten by those who experienced them firsthand. The Timberwolves have been a lottery team since Jefferson was traded in 2007. That doesn't mean, though, that Jefferson can't help turn the team around down the road.

“I know it's difficult for him,” said Perkins. “I know he went through it when he was here. At the same time, they've got a young team, so you never know how they might be in like the next three years and how we might be in the next three years. So it might be vice-versa.”