Broncos C J.D. Walton has undergone an additional surgery on his troublesome ankle, and is expected to miss the entire season.
Per reporter Jeff Legwold, Walton could return in the second half if “all goes well in healing.” It’s a blow for the Broncos, who don’t have a viable alternative after opting not to re-sign Walton’s 2012 fill-in Dan Koppen. Walton had previously never missed a game before going down in Week 4. The Broncos could re-sign Koppen — the top remaining center in Nick Mensio’s free agent ranks — but he was little better than replacement level. Jeff Faine and Eugene Amano are other possibilities. In house, displaced guard Chris Kuper has never played center. G Manuel Ramirez is an option. As for Walton, missing 28 straight games would certainly put his NFL future into question even though he’s only 26. He’s entering the last year of his rookie contract.