Bills add RB Bush to uncertain backfield mix

3:56 PM ET

The Buffalo Bills signed running back Reggie Bush on Monday, adding experience to their uncertain offensive backfield.

Bush agreed to a one-year deal, a source told ESPN’s Adam Schefter.

Bush, 31, is expected to compete with veteran Mike Gillislee and rookie Jonathan Williams for a backup role behind LeSean McCoy in training camp.

Reggie Bush appeared in a career-low five games in 2015 and his season ended due to a freak knee injury suffered when he slipped on the exposed concrete at the Edward Jones Dome in St. Louis. Ric Tapia/AP Photo

Karlos Williams, who as a rookie last season showed promise as the Bills’ No. 2 running back, is suspended for the first four games of the regular season for a violation of the NFL’s substance-abuse policy. Jonathan Williams was arrested for suspicion of DWI earlier this month, although if the 2016 fifth-round pick is suspended, it will not likely happen until later in the …

continue reading in source espn.go.com