The Indianapolis Colts have opened the 21-day practice window for center Ryan Kelly's return from injured reserve according to James Boyd of The Athletic.

Kelly, a four-time Pro Bowl center, has been on injured reserve since early November with a knee injury. His return to the Colts lineup would be a welcomed development for Anthony Richardson and Jonathan Taylor. Pro Football Focus grades the Colts offensive line as the tenth best pass blocking unit and the second best run blocking unit

Kelly could return as soon as this Sunday against the Broncos.