While everyone will rightfully point to Rajon Rondo’s historic triple-double performance in Game 4 on Sunday against Cleveland as the spark the Celtics  needed, it was Tony Allen’s all-around court presence that might have made the biggest difference at the biggest moments of the game.
Allen ‘ as is his style ‘ came in full speed off the bench, running interference on LeBron James  and flying down the court with the greatest of ease, taking passes from Rondo and dunking the ball to energize the Celtics and the TD Garden crowd in a crucial 97-87 win over the Cleveland Cavaliers .
With the game tied at 70 late in the third quarter, Allen was smart enough to follow Rondo in transition. As Rondo drew James to the basket, that left Allen wide open. With a half-circle behind-his-back pass, Rondo fed Allen for a dunk and the Garden exploded.
‘Ya, that’s what you call an energy play from Rondo,” Allen said. “I mean he had energy all night. I don’t know what his stat-line was like but I know it was big and we fed off of his energy all night.”
Early in the fourth quarter, Allen had the chance to return the favor when he drew James to the basket, only to find a trailing Rondo behind him for another easy basket.
“It’s just one of those things where I got out in transition and we figured if we could get out quick, we could get some easy baskets,” Allen said.
Then there was just the simple matter of winning a game the Celtics absolutely needed, especially after the worst home-court playoff loss in Celtics history on Friday.
‘Nobody wants to apart of history from a losing effort, losing by 30 in your home court,” Allen said. “Everybody was looking at film yesterday and was down on themselves. I think today they came out and just wanted to turn that negative energy that we had last game into something big today. I think that we did a good job of that.
‘We all do a great job of listening to [defensive coach] Tom Thibodeau , Doc [Rivers ] do a good job of drawing up plays, but most importantly we hang our hats on defense. I think that’s why we were big today.’
From the moment the season began, Doc Rivers told the Allen off the bench that his playing time will be dictated by two things – his defense and his energy.
Both have been in high gear at the best time of year for the Celtics so far.
‘Most definitely, I think once I get a few chip in baskets, they give me a little energy but for the most part I am a defender first on that court,” Allen said. “I need to do that in order for me to stay out there.’
With Paul Pierce  saddled with five fouls and Ray Allen  using all six of his, it was up to Allen off the bench to assume responsibility for helping to hold LeBron in check. And with just 22 points in 43 minutes, Allen and the Celtics accomplished their goal.
‘My plan for that was to listen to [defensive coach] Tom Thibodeau and call out those sets before hand and him looking at that formation, and I was just ready to roll. He did a good job just telling me the formation.
‘Basically all I have to say is that our whole concept is feeding off of our defense. Our team concept is slow to the ball and get it out to the shooters. I was just trying to be active on our team defense and I took advantage of that today and I was fortunate enough to convert that in the fourth quarter,’ Allen said.
If the Celtics can get more of that in the next week from Tony Allen, they might just need him later in May, too.