Often the forgotten member of Miami's "Big Three," Chris Bosh stepped up with LeBron James and Dwyane Wade sitting out to help the Heat move closer to securing home-court advantage throughout the NBA playoffs.

Bosh scored 23 points, including the winning 3-pointer with 1.9 seconds remaining, and the Heat beat host San Antonio 88-86 on Sunday night with James, Wade and Mario Chalmers sidelined by injuries.

"We are the defending champs no matter who we put out there," Bosh said. "We are still the Miami Heat. We believe in ourselves. Each one of these guys is a professional. We played bigger roles in other cities, but we came together and accepted lesser roles to win a championship here. We can still tap into that."

"He's a heck of a player, No. 1, but he's also a hell of a shooter," Spurs coach Gregg Popovich said of Bosh. "He knocked down a big shot."

Ray Allen added 14 points for Miami (58-15), which swept the season series with San Antonio (55-18). By earning the head-to-head tiebreaker with San Antonio, the Heat has a four-game cushion with nine remaining for the league's best record.

Miami beat San Antonio 105-100 on Nov. 29 when the Spurs opted to rest Tim Duncan, Tony Parker, Manu Ginobili and Danny Green.

Knicks 108, Celtics 89: Carmelo Anthony had 24 points and 10 rebounds, and host New York extended its winning streak to eight games and moved closer to ending Boston's hold on the Atlantic Division title.

Coach Mike Woodson has talked about winning the division title since taking over last March, something the Celtics have done five years in a row. The Knicks (46-26) also are targeting 50 wins.

"It's very doable for us, and we have something to look forward to," Anthony said. "Fifty wins is always a great thing in this league to accomplish, winning a division is always a great thing to accomplish, a great accomplishment in this league. So them two things are definitely doable, we've just got to keep it moving, keep it going."

The Knicks climbed back into a tie with Indiana in the race for the No. 2 seed in the Eastern Conference, which could mean a playoff meeting with the Celtics.

"I think we're just clicking at the right time," guard Iman Shumpert said. "Going into the playoffs, everybody's got a different focus. Guys got a little more pep in their step, and everybody's locked in."

Bulls 95, Pistons 94: Luol Deng scored 28 points for host Chicago, which rallied from a 13-point deficit to defeat Detroit.

Hornets 112, Cavaliers 92: Greivis Vasquez scored 25 points and Ryan Anderson added 23 to lead host New Orleans past Cleveland.

Kyrie Irving returned from a shoulder injury and led the Cavaliers with 31 points and six assists.

Wizards 109 Raptors 92: Bradley Beal scored 24 points in his return, leading host Washington over Toronto. Beal had missed five consecutive games and 11 of 13 because of a sprained left ankle.