The have lost All-Pro guard for the foreseeable future.Jeff McLane of the Philadelphia Inquirer that Mathis "will be Houston Astros Jersey out for an extended period" after an MRI revealed a sprained MCL in his right knee, according to an NFL source.The injury occurred when running back was pushed into the back of J.R. Richard Jersey the Mathis' legs in the second quarter of over the . Mathis was in considerable pain before being carted to the locker room Carlos Correa Jersey for an examination.Mathis will get a second opinion on Wednesday. It's po sible the could opt to place the guard on short-term injured reserve, a move that would sideline him for at least eight weeks.Mathis isn't the only Yuli Gurriel Jersey i sue on Philadelphia's line right now. Right tackle suffered a high-ankle sprain and is expected to mi s several weeks, a source told McClane. Barbre had been filling in for the suspended . and are Craig Biggio Jersey expected to slide into starting roles in .The latest covers the ' and action.