Buffalo Bills expected to re-sign RB Karlos Williams

Running back Karlos Williams is expected to re-sign with the Buffalo Bills after serving his four-game suspension for violating the league's substance abuse policy.

Williams wrote on his Twitter account that, "The return is gonna be so sweet," and ESPN reported that he was scheduled to visit Thursday with the Bills, who released the 2015 fifth-round pick in August after his suspension was levied.

Williams, 23, rushed for 517 yards and seven touchdowns as a rookie, but battled multiple injuries and then showed up to training camp out of shape. A free agent after his release, Williams became eligible to play again this week.

LeSean McCoy leads the Bills with 297 yards on 67 carries, and has 84 touches through four games. Backups Mike Gillislee, Jonathan Williams and Reggie Bush have combined for 15 carries and 18 touches, with Bush inactive the past two weeks.

The 6-foot-1, 230-pound Williams averaged 5.6 yards per carry as a rookie and is considered a strong physical runner who serves as a good complement to the versatile McCoy.