Running back Giovani Bernard did an admirable job of holding down the fort while Joe Mixon missed two weeks of action. Unfortunately, Bernard is now dealing with an injury of his own. The veteran will be out for 2-4 weeks with an MCL sprain, a source tells Tom Pelissero of NFL.com (on Twitter). 
At minimum, Bernard will be sidelined for Sunday’s game against the Dolphins and the following week’s contest against the rival Steelers. Beyond that, Bernard is in jeopardy of missing games against the Chiefs and Bucs. The good news is that the Bengals have a Week 9 bye, so he’ll have some extra time to rest his knee in early November.
In the past two games, Bernard has scored three touchdowns while averaging 4.8 yards per carry. His presence will be missed, but the Bengals’ rushing attack should be just fine if Mixon can resume his usual workload on Sunday.
Without Bernard, Mark Walton will assume the No. 2 RB role. The recently signed Thomas Rawls is also on hand as a depth option.
So two weeks from now this guys not gonna run 200 yards against the Kansas City run defense