WESTFIELD, Ind. -- The Indianapolis Colts have another issue on their hands at running back.
Zack Moss, who was working with the starting offense in the absence of Jonathan Taylor, sustained a broken arm in Monday's practice and will miss roughly four to six weeks, a source confirmed to ESPN.
Moss took a hit during Monday's practice -- the first day in pads -- and immediately reacted, slamming his helmet and grabbing his right arm. Moss, who was traded to the Colts last season from the Buffalo Bills in a deal involving running back Nyheim Hines, is expected to be an important part of the Indianapolis running game with dual-threat quarterback Anthony Richardson in the backfield.