Eagles starting OLT Jason Peters will undergo an MRI on his sprained left knee on Monday, according to the Philadelphia Inquirer.
Peters sprained the knee during Sunday night's 27-24 win over the 49ers.
The seventh-year veteran has started all five games for the Eagles this season after starting 15 in 2009. Peters is a three-time Pro Bowler.
The way we see it
The Eagles already have lost two key players in pass protection and run blocking this season in C Jamaal Jackson and FB Leonard Weaver. Losing Peters for an extended period of time from the blind side could make life difficult offensively for the Eagles.