Report: Bills' Clay day to day with pulled back muscle

Buffalo Bills tight end Charles Clay is reportedly day to day with a pulled back muscle, according to ESPN's Adam Caplan.

Clay left during the first half of Sunday's game against the Philadelphia Eagles and did not return, clutching his back as he departed the field.

If Clay cannot suit up for the Bills' Week 15 clash against the Washington Redskins, Chris Gragg will likely be inserted into the starting lineup.

Clay recorded 51 receptions for 528 yards and three touchdowns through 13 games.