The NBA roundup …
TORONTO ó Greg Stiemsma tipped in the game-winning shot with 12 seconds left and the Boston Celtics held off the Toronto Raptors 76-75 Sunday in the preseason opener for both teams.
Ray Allen scored 12 points for the Celtics, while Kevin Garnett had nine points and seven rebounds.
Andrea Bargnani led Toronto with 16 points.
Heat 118, Magic 85
MIAMI ó LeBron James scored 19 points and the Miami Heat got their preseason off to an easy start, running away to beat the Orlando Magic.
Terrel Harris scored 16, while Dwyane Wade and Chris Bosh each had 14 for Miami. The Heat led 53-46 at halftime before turning it into a rout.
Ryan Anderson and J.J. Redick each scored 22 for Orlando, which lost for the first time in 22 preseason games dating to October 2008. The subject of trade talk throughout training camp, Dwight Howard finished with only five points on 2-for-9 shooting.
Magic point guard Jameer Nelson missed all 10 of his shots.
Thunder 106, Mavs 92
DALLAS ó Kevin Durant scored 21 points and reserve James Harden added 16 to lead the Thunder past the defending champions in the preseason opener for both teams.
Durant, the NBA scoring leader last season at 27.7 points a game, went 13 for 14 from the free throw line.
Lamar Odom, acquired from the Los Angeles Lakers in a trade on Dec. 11, had 14 points and seven rebounds in his Mavericks debut.
Dirk Nowitzki and Jason Kidd, leaders of the Mavericks title run, were in uniform and are healthy but were rested.