Andrew Bynum is battling a knee injury, but he vows to play in Game 5 on Sunday.

?It?s a little bit frustrating, but I?m going to play on Sunday, play hard on Sunday,? Bynum said.

Bynum said the pain isn?t the problem, but the swelling was so great after Game 3 and early in Game 4 that his muscles couldn?t fire properly to move and jump.

About playing through the pain for the final two or three games of the season, Bynum said: ?That?s what I?m going to have to do. I?m prepared to do it.?