WALTHAM — Glen Davis  turned 24 years old on Friday. He felt it, too.
“I feel old,” he said after practice. “Old, old, old.”
He had a reason to feel that way. The banged up big man, who broke his right thumb in October, sprained his right ankle this week. But with a depleted lineup (Kevin Garnett , Rajon Rondo , and Paul Pierce  will not play on Saturday ), Davis is needed on the court.
“We need some help. You know? We need as many bodies as we can,” he said. “So as long as I’m functioning, I can play with the pain. If I can function, I can play. It’s how it is.”
Davis participated in a two-hour practice on Friday. He is expected to play against the Raptors unless his ankle swells up overnight, said Rivers.
Davis’ thumb is still sore and will receive extra tape on his ankle. He said once he begins playing, though, he becomes too busy to focus on the injuries and forgets about the pain. Whether or not he should be playing becomes inconsequential to him.
“No, I want to play. It doesn’t matter. As long as I can function, I’ll play. I’m good enough to do something out there,” he said. “That’s the beauty about my game. I’m not a high jumper. If I was a high jumper, I’d be kind of concerned because that’s the only thing I can do. But my game is staying on the ground, getting position. It kind of takes away from my jumpshot a little bit, but I’ll make it work.”
As long as Davis feels like he can play, it doesn’t matter how old he feels.
“I’m functioning,” he said. “I can play. I can play hard. I can compete. “