WALTHAM ‘ All season, the Celtics  have been looking for a chance to prove their toughness.
At 9-8, they get another chance Wednesday night when they host the most impressive rebounder in the NBA. Kevin Love  isn’t among the league leaders with 15.3 rebounds per game since he’s played just six games due to a broken knuckle on his right hand. But he will be eventually.
“Kevin Love is one of the best rebounders of our era,” said C’s coach Doc Rivers . “I know that’s saying something early on in his career, but he really is.”
In addition to coaching against him, Rivers got an up close and personal look at Love at the Olympics in London. Love, as Rivers noted Tuesday, was there helping Team USA flex its muscle early on in the Games while Team USA was still finding itself.
“Two of those games early in the Olympics were kind of close in the first half, the U.S. would have been down by 20 but Kevin Love kept getting rebounds and you stare at it and watch it, it’s an art.”
“Our main objective is to try and slow him down,” Paul Pierce  said. “He’s shown he can dominate the game with his offensive rebounding, and defensive rebounding. That’s definitely an emphasis.”
Rivers thought the Celtics cleared a mental hurdle against the Thunder and Kevin Durant . Then they barely beat the Magic two days later and were beat up by the Nets . Pierce knows the Celtics can’t afford a relapse, even if they handle Love and the Timberwolves  Wednesday.
“Going up against a guy like that definitely is a chance but it’s something you want to see consistently,” Pierce said. “In order to build and in order to get better, you can’t just pick your moments because you get one of the more physical players in the NBA coming into our building. It has to be a something that’s a mindset that we have to be able to do every night, regardless of who we’re going against”
Love is also averaging 21.7 points and represents the ultimate toughness challenge for Pierce and the Celtics, because he can also step back and shoot the three, though he has shot just 19.4 percent from long range this season.
“Kevin Love is such a different kind of player,” Pierce said. “He’s a power forward but he can step out and shoot the three, but he’s an interior player when it comes to rebounding and doing all the dirty work.”