Riley extends Spoelstra's contract

Erik Spoelstra and the Miami Heat have agreed on a contract extension, ending any speculation that Pat Riley's protege would be a lame-duck coach this season.

Riley, the team president, made the announcement Friday. The Heat typically does not release terms of deals for coaches and executives, and Riley did not divulge any details of Spoelstra's new deal. Spoelstra is beginning his fourth season as coach and his 17th season with the team overall.

"We have one of the great young coaches in the league, an absolute member of this family and has been for a long time, so we want him to become a Hall of Famer," Riley said Friday. "So it's been taken care of."

Spoelstra, 41, was not available for comment.

In his first three seasons, Spoelstra went 148-98 in regular-season games and 18-15 in the playoffs. In 2010-11, he led the Heat to a 58-24 mark and a 14-7 record in the postseason. The Heat lost to the Mavericks in six games in the NBA Finals.

Kobe, wife split

Kobe Bryant's wife, Vanessa, filed for divorce, citing irreconcilable differences. They've been married for 101/2 years and have daughters aged 8 and 5.

Let the games begin

In the first night of preseason games Friday, Derrick Rose led the visiting Bulls with 16 points in a 95-86 victory over the Pacers . . . Jarrett Jack scored 24 points as the Hornets beat the host Grizzlies, 97-90, in New Orleans' first game since the trade of star guard Chris Paul to the Clippers.

Comings and goings

Bobcats forward Eduardo Najera had surgery to repair torn cartilage in his left knee and will miss six to eight weeks . . . Swingman Maurice Evans, a union vice president during the NBA lockout, has re-signed with the Wizards. He averaged 9.7 points in 26 games with Washington . . . Guard Keith Bogans was waived by the Bulls. -- AP