Benny Cunningham, RB (STL)
Following the injury to Zac Stacy on Sunday, Cunningham did a great job finishing what Stacy started, rushing for 109 yards and a touchdown on 13 carries. The most impressive note to take away from Cunningham's breakout performance was five of his carries went for 10 yards or more, leading yards per carry average just over eight yards. Stacy was diagnosed with a concussion, and will have to work through the league's protocol before being cleared to rejoin the team, so Cunningham could be in line to get his first start against the Niners on Sunday. While it is clear that Stacy is the team's No. 1 running back once healthy, Cunningham should at least be picked up as a precaution for Stacy owners in the event his health takes a turn for the worst.