Erik Spoelstra isn't a doctor, but the Miami Heat coach got to play one Friday. Asked about the best course of treatment for Dwyane Wade's balky right knee, Spoelstra said, "no collisions." But in the next breath Spoelstra said that doesn't mean there is necessarily a need to hold Wade out of Sunday's Game 4 against the Milwaukee Bucks at the BMO Harris Bradley Center, when the Heat try to sweep the best-of-seven opening-round NBA playoff series. "He's been dealing with this for over a month," Spoelstra said of what the team is reporting as a bone bruise. "It's getting better. But he plays a physical game. He was on the ground four or five times [Thursday] night. One was a collision where he got fouled in the first half, he got hit in the elbow, he got hit in the face, he got hit in the knee, all in one play. "But he's fighting through it. Some days are a little bit better than others, depending on the collisions he has from the night before." Wade took his fight Friday to the training room at Marquette University, for another round of aggressive therapy. But Spoelstra warned, coming off Wade's 1-of-12 shooting in Thursday's 104-91 Heat Game 3 victory, that this is not nearly the concern as Wade's left knee was during last season's playoffs, when offseason surgery followed the run to the franchise's second NBA title.