The Knicks lost Game 1 and may have lost their starting point guard as well.

Chauncey Billups, limping noticeably following the Celtics' 87-85 victory, suffered a strained left knee in the final minute.

"I'm in a lot of pain right now," Billups said. "That's to be expected. If I can get out there and help any I'll be out there. We'll just have to see."

Billups said he felt his knee buckle as he went up for a layup with 1:20 remaining. He appeared to be fouled by Boston's Jermaine O'Neal and went hard to the floor.

After staying on the floor for a few seconds, Billups got up slowly, had to be helped off the court and instead of going to the bench, went straight to the locker room.

"As I took off, my leg buckled on me," Billups added. "The doctors said it's just a strain. Hopefully, that's it. We'll check it out and hopefully I can get back as soon as possible."

Billups will have the knee examined Monday to determine if there is any structural damage. The timing of the injury is bad on many levels. It seems unlikely that Billups, a 2004 NBA Finals MVP, will be available for Tuesday's Game 2.

Moreover, Billups, who came to the Knicks as part of the Carmelo Anthony deal, has a $14 million option that the Knicks have to decide on five days after their season concludes.