Kerwynn Williams rushed for six yards on two attempts in Sunday's 20-10 win over the 49ers.
Kerwynn Williams lost two yards on three carries in Sunday's 34-7 loss to Philadelphia.
Kerwynn Williams played just two of 86 offensive snaps in Sunday's 18-15 overtime win against the 49ers.
After getting the start in Week 2, Kerwynn Williams carried the ball once for three yards in Monday's 28-17 loss to Dallas.
Kerwynn Williams rushed nine times for 22 yards while failing to draw a target in the passing game during Sunday's 16-13 overtime win over the Colts.
Head coach Bruce Arians termed Kerwynn Williams the starting running back for Sunday's contest in Indianapolis, Mike Jurecki of Arizona Sports 98.7 FM reports.
Head coach Bruce Arians said Monday that Kerwynn Williams will serve as the No. 1 running back during David Johnson's (wrist) upcoming absence, Bob McManaman of The Arizona Republic reports.
Kerwynn Williams is listed as David Johnson's direct backup on the Cardinals' first depth chart of the season, Darren Urban of the Cardinals' official site reports. Additionally, Williams is No. 1 for both kick and punt returns.
Kerwynn Williams has racked up seven carries for 25 yards and a touchdown in three preseason games to date.