Jim Caldwell: Eric Foster has surgery

Indianapolis Colts defensive tackle Eric Foster had successful season-ending ankle surgery Tuesday morning and will remain in a Florida hospital for three or four days, coach Jim Caldwell said Tuesday.

Foster suffered a dislocated right ankle in the second quarter of the Colts' 24-17 loss to the Tampa Bay Buccaneers on Monday night.

Foster, in his fourth season out of Rutgers, was one of the key cogs in the middle of the defensive line and often played alongside rookie defensive tackle Drake Nevis, who also left Monday night's game with an injury. Foster entered the game with 12 tackles.

"Every1 is back at work on 3 hours' sleep/Players must rest all day n get treatment,if need b..I'll bring Eric back home,on my plane,midweek," team owner Jim Irsay wrote on Twitter.

Caldwell said the team is likely to add a player from the practice squad, with the top candidates being Ricardo Matthews or Ollie Ogbu.

The injury occurred with 52 seconds remaining in the half and the Colts leading 10-7. Foster got tangled up with the pile while trying to assist on a tackle and remained down after the play. He was immediately attended to by the training staff, fitted with an air cast and left the field on a cart.

Foster pounded his chest and yelled to teammates as he left the field to applause.

"I think you have to deal with injuries in this business," Caldwell said after the game. "They happen. You just have to find a way to overcome it. That's what we talk about -- the next man up. Somebody has got to fill in and be ready to play."

Polian also says Curtis Painter is likely to continue playing after throwing two TD passes in his first career start Monday night.

Information from ESPN.com's Paul Kuharsky, ESPN.com's Pat Yasinskas and The Associated Press contributed to this report.