Mo Williams, Randy Foye ready to serve as Clippers lose Billups. When the season started, there had been so much talk about all the guards the Clippers have. Now with starting guard Chauncey Billups' suffering a left Achilles' tendon injury Monday night, the Clippers have lost a key player, meaning they will have to turn to reserves Mo Williams and Randy Foye. Billups was injured during the fourth quarter of the Clippers' overtime victory over the Orlando Magic. He will undergo an MRI exam on Tuesday, but it looks as though the 15-year guard will be out for a while, if not the rest of the season. Either Williams or Foye will start. "Whatever role they want me to play, I'll fill it," Williams. I'll do whatever this team needs. I thought Chauncey had sprained his ankle. But when he couldn't get up, I was like 'I hope it ain't serious.' It looks like it is, though. Williams had nine points against the Magic. He played all five minutes of overtime and made two free throws late in OT. He has started one game this season for the Clippers. "That's a big loss for us, losing Chauncey," Williams said. We're going to see how valuable he is for us when we miss him. You always take for granted what a guy gives you until you don't have them anymore. But at the same time, this is a professional basketball team and that's why you carry 15 players. You've got to be ready. Foye didn't score against the Magic, missing all three of his shots. He played just six minutes 40 seconds, but his playing time will increase with Billups out. "I've always been a pro and I stay prepared," Foye said. I'll be ready for whatever they want from me. I just hope Chauncey is OK. But as a team, we just have to step up. Newcomer Martin prepares for action Though Kenyon Martin was cleared to play Monday, Clippers Coach Vinny Del Negro said that the 6-foot-9 power forward wasn't quite ready for action in a game and that there was no timetable for him to play. Martin, whom the Clippers signed Friday to help their frontcourt, worked out before Monday night's game and will practice Tuesday when the Clippers arrive in Cleveland for Wednesday night's game against the Cavaliers. "I don't just want to throw him out there and he's not ready physically and he hurts himself or it's not safe to put him out there," Del Negro said. Martin last played in a game Dec. 21 for the Xinjiang Tigers in the Chinese Basketball Assn. Martin had 13 points on six-of-12 shooting and grabbed nine rebounds in 29 minutes against Liaoning. He averaged 13.9 points and 9.7 rebounds in 12 games for the Tigers. twitter.com/ba_turner