Denver Broncos center Dan Koppen left Sunday's practice with an injury, according to the Denver Post's Mike Klis.
Now, Jay Glazer of FoxSports says the Broncos fear that Koppen has torn his ACL.
The Broncos are also likely without J.D. Walton for the season, and now with Koppen possibly on the shelf too, Denver is in the market for a center, who can step in and protect Peyton Manning.
Follow me on Twitter @TerryMc13
Terry McCormick covers the Titans for TitanInsider.com
MAR 07 Joel Corry
Front offices and agents of soon-to-be free agents can begin discussions this weekend.
MAR 04 Jerry Angelo
At some point, even the best partnerships in the NFL will begin to dissolve.
MAR 04 Jeff Fedotin
Amidst swirling rumors, Colts would serve as perfect team for embattled tackle.