Veteran running back Jamaal Charles is injured yet again and his most recent one could cost him another long layoff with fears that his right knee involves a torn ACL.

Ian Rapoport of NFL.com posted the update on Twitter on Sunday, saying that Charles will have an MRI soon to further evaluate the injury.

The Chiefs not only lost Charles to the knee injury but also lost to the Chicago Bears, 18-17 on Sunday. Charles was seen being helped off the field, as he was unable to put weight on the injured leg. Before getting injured, Charles was able to run for 48 yards on 12 carries.

Charles is the all-time leader in total rushing yards for the Chiefs franchise.

With the 28-year-old Charles sidelined, Kansas City is expected to tap Charcandrick West, with Knile Davis as back-up, at the primary running back position. The injury to their star running back is seen as a big blow for the Chiefs’ campaign this season. Already struggling with just a win in five games to start the year, the Chiefs cannot afford to lose Charles for an extended period.

Kansas City is in a four-game losing streak with losses to the Denver Broncos (31-24), Green Bay Packers (38-28), Cincinnati Bengals (36-21) and Bears the last four after their opening day win against the Houston Texans (27-20).

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