Before exiting the game on Sunday, Mack was on fire, running for 109 yards on 14 carries with a touchdown, including four runs of at least 10 yards. That was his best effort statistically since their Week 5 upset of the Kansas City Chiefs on Sunday Night Football. It is unclear on how exactly he suffered the injury, but the worry is that he could miss the remainder of the season.
Johnathan Williams took over as the primary producer in the backfield, as he is expected to do in a starting role with Mack sidelined, and he ran for a career-high 116 yards in relief. Nyheim Hines also got more touches after the injury and found the end zone in the second half. Mack has found the end zone three times with 753 yards on the ground this season, as he broke out a season ago with 908 rushing yards and nine touchdowns with Andrew Luck handing him the ball. The Colts have not stopped contending in the AFC following Luck's stunning retirement, and they will be in a battle for first place on Thursday Night Football against the Texans in Houston.