Chris Bosh and the Miami Heat were relieved by the diagnosis. It's the prognosis - or lack of one - that's a source of worry now.

And suddenly, the Indiana Pacers may be even more of a threat.

Bosh strained a lower abdominal muscle in Game 1 of the teams' Eastern Conference semifinal series, that original diagnosis confirmed Monday after an MRI exam. The team said Bosh is out "indefinitely," though coach Erik Spoelstra and others say the injury could have been worse.

Either way, Bosh is out for Game 2 on Tuesday, and sounds as if he probably won't play again in the series.

"This season has to be extended for me to play again," Bosh said. "So that's what's on my mind."

Bosh was hurt late in the first half as he drove for a dunk and got fouled by Indiana's Roy Hibbert.

Clippers forward Blake Griffin said he would play in Game 1 of the Western Conference semifinals even though Clippers coach Vinny Del Negro was making no guarantees.

Griffin said he felt about "75 to 80" percent healthy after a sprained left knee sidelined the all-star for nearly the entire fourth quarter in a Game 7 victory at Memphis on Sunday.

Lakers ready for Thunder

The Los Angeles Lakers-Oklahoma City Thunder series was already going to be rollicking, a classic case of young vs. old. Then came the bonuses from the basketball lords the last two months.

Derek Fisher ended up with the Thunder after being traded by the Lakers in March. James Harden took an elbow to the side of the head from Metta World Peace last month.

Welcome to the newly refurbished Western Conference semifinals, which opened in Oklahoma City Monday night. (Game 1 of this Western Conference semifinals ended too late for this edition.)

The Thunder have awaited this matchup longer than the nine days since their first-round sweep of Dallas. It goes back to April 22, when World Peace earned his seven-game suspension.

"It's going to be intense," Lakers guard Kobe Bryant said. "The crowd's obviously going to have a field day with that and I'm sure their players will generate some type of energy from it."

- Inquirer wire services