Las Vegas Raiders running back Alexander Mattison (ankle) is likely to return to action in Week 15 to face the Atlanta Falcons on Monday Night Football, according to head coach Antonio Pierce. However, Pierce said Sincere McCormick is the new starting running back, and Mattison will serve as his backup. Zamir White (quad) is out for the season after being placed on Injured Reserve. This likely marks the end of Mattison as a viable fantasy option, though he has been underwhelming to this ...