Thanks to tenyardfight for posting about this earlier.
John Oehser is reporting that Tyjuan Hagler tore a biceps muscle during the 49ers game Sunday and that his 2009 season is over. Philip Wheeler, the man who had the starting job in pre-season before Hagler wrestled it away from him, is once again the starting SAM backer. Ramon Humber will also compete, and Cody Glenn was promoted from the practice squad.
For Hagler, this injury (which sound similar to the injury he had in 2008) is another set back. He'd signed a one year deal to return to the Colts in hopes of competing for his starting job again, which he'd lost last season ( presumably because of the injury) to Clint Session. Hagler fought back and was playing significant snaps in 2008 at WILL. After an off-season of little interest from other teams, Hagler returned to Indy, signed that one-year deal, and had to (once again) earn a starting job, which he did.
It's very sad for Hagler, but he can fight back again. He's the kind of tough-minded scrapper that the Colts really like, which is likely why they re-signed him this past off-season. Maybe they'll do so again.
For now, Philip Wheeler should do a good job. He played much of the 49ers game, and seemed to do OK (forced a sack on Alex Smith). Humber and Glenn are solid depth behind Wheeler, and Session has some experience at SAM as well.