Cavs forward Tristan Thompson had 11 points and a game-high 12 rebounds, marking his 19th double-double of the season.

Miami got key contributions from some of its role players, including Mario Chalmers, Ray Allen and Battier. Chalmers had 16 points and made 4 of 5 attempts from long range. Allen had 11 points and made all three of his 3-point tries. Battier had 14 points and made 4 of 7 3-pointers.

The Heat, 41-2 since last season when shooting over 50 percent, hit 52 percent of their shots Sunday. The Cavaliers shot an even 50 percent.

The Heat shot a blistering 57.5 percent in the first half, taking a 64-46 lead into the locker room. Miami made 8 of 10 3-pointers in the first half and led by as many as 20 points.

NOTES: Waiters has nine 20-point games in this his rookie season. ... The Cavaliers are without reserve forward Omri Casspi, who complained of stomach pain Saturday and was rushed to a hospital in Orlando. Scott said Casspi had surgery to remove his appendix. ... Heat reserve wing Mike Miller, who missed the past three weeks due to an inner-ear infection, was available Sunday, according to Spoelstra. "He can't hear anything we're saying," Spoelstra said, "but he's back with us." ... Rumors are rampant that James could leave the Heat in the summer of 2014, when he has an opt-out clause in his contract, and return home to Ohio to play once again for the Cavaliers. A year ago, James said a potential return to his home state "would be great. It would be fun to play in front of those fans again. I don't know what the future holds, but I wouldn't take that option out." More recently, James said Heat fans have nothing to worry about "at this time." ... The appeal for James goes beyond coming home. The Cavs have a young point guard, Irving, who is quickly becoming a star. "It was awesome to play with Kyrie," James said at last weekend's All-Star Game. "He's going to be unbelievable."