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The news on Eagles left tackle Jason Peters is as bad as Philly fans feared: He has suffered a ruptured Achilles tendon, will need surgery, and may miss the entire 2012 NFL season.

The Eagles have announced that Peters suffered the injury during a running session on Tuesday, March 27, in Texas, and he will have surgery on Tuesday, April 3 in Philadelphia.

Ruptured Achilles tendons are always season-ending injuries when they happen in season. It’s conceivable that Peters could be back to full strength very late in the 2012 season, but most of the time this is an injury that requires a full year of rehabilitation.

This is a huge blow to the Eagles, who have just lost their best offensive lineman.