An unfortunate step has sidelined running back .Coach Dan Quinn announced Thursday that the third-rounder and hit his head on Wednesday, leaving Coleman mired in the league's concu sion protocol, per The Atlanta Journal-Constitution.Depending on the severity, it's fair to wonder if Coleman will play again this season for a team in complete freefall.With just a single 100-yard game on the year, the former Indiana star has served as a second option to er all season. Mark Clayton Jersey His 87 carries have produced a healthy 4.5 yards per attempt, but Coleman has yet to materialize into a steady backfield option.If he can't play Sunday against the , look for to serve as Freeman's backup in a game that could officially end Atlanta's paper-thin shot at the postseason.Other injuries we've been tracking on Thursday: tight end (concu sion) was back Larry Csonka Jersey on the field Thursday, but did not participate in practice. against the on Monday, according to NFL Media's Rand Getlin.Linebacker (knee) and safety (groin) both did practice.Wideout is dealing with foot and ankle injuries. He is not expected to practice again this week, coach Jason Garrett told reporters. Bryant has been dealing with the injuries for the past few weeks, and it's unclear whether he'll play against the on Sunday. cornerback (shoulder) did not participate at practice.Running back (knee) did not participate during the practice. center (calf) Jason Taylor Jersey and left tackle (knee) are both expected to play Sunday vs. the . running back (foot) will not play Sunday against the , coach Ron Rivera announced Thursday. tailback (knee) did not practice again on Thursday, while wideout (thigh) was limited. defensive tackle told reporters he's been playing since Week 2 with a torn rotator cuff. In addition, he revealed he underwent surgery for a broken left hand he suffered against the on Nov. 29.While (foot) did not practice on Thursday, the star quarterback Sunday against the . (chest), (knee), (knee) and (knee) also did not practice on Thursday. defensive tackle (hamstring) and running back (rib) were limited in practice, while cornerback (concu sion) did not practice. safety (ankle) did not participate in practice. Adam Butler Jersey Running back (toe) and cornerback (calf) were both limited. wideout (hamstring) , lineman (calf) and safety (pelvis) are questionable, per Pete Carroll.The suffered several injuries during Thursday's to the . Cornerback (hamstring) and safety (groin) made early exits and guard left in the second half to be evaluated for a po sible concu sion. In the first half, safety suffered a knee injury and didn't return.In addition, offensive tackle (abdomen) and wide receiver (chest) left in the second half, and didn't Mark Duper Jersey return. Wide receiver (groin) did not suit up for the game.