The Colts could be without Andrew Luck when they play the Steelers at home on Thanksgiving Day.

The team announced that the quarterback is in the concussion protocol.

Related players: Scott Tolzien, T.Y. Hilton, Phillip Dorsett, Donte Moncrief

The timing is bad for the Colts who will be on a short week. It's a night game against the Steelers on Thanksgiving, so owners should probably have a backup plan. It will also downgrade the Indy receiving weapons. Scott Tolzien would get the start if Luck can't play.

The Colts have plenty of speed at receiver in T.Y. Hilton and Phillip Dorsett, but the two of them lack the size Donte Moncrief (6-foot-2) has.

Moncrief is the possession receiver the Colts lacked while he was out because he can go get the ball in coverage in the middle of the field or in the end zone. He's tied for seventh on the Colts in receptions with 14 and he's fifth in receiving yards. He has three touchdown receptions while only playing four games this season. You can expect Luck to look for Moncrief even more now that he's healthy.

Moncrief said he and Luck spend ample time working on back-shoulder catches during the individual portion of practice. The play where Moncrief caught his touchdown against the Packers was supposed to be a run, but Luck called an audible when he noticed the way the safety was "tilted," which left the throw open to the backside for Moncrief. This could potentially be a good sign of things to come for Moncrief owners.

Quarterback Andrew Luck will have his top three receivers for the first time since Week 2 because Donte Moncrief and Phillip Dorsett are back to give T.Y. Hilton some help.

Moncrief’s return gives the Colts some size and also a possession receiver for Luck to turn to. Moncrief injured his shoulder in the first half of their game against Denver in Week 2.

“He is a heck of a player,” offensive coordinator Rob Chudzinski said. “He can catch the ball down the field, he is good in the short game. He is a big, strong guy that can make plays on top of guys even when he is covered.”

Luck threw for 353 yards with no interceptions against the Tennessee Titans without Moncrief and Dorsett. The quarterback could be even more effective with healthy group of receivers while facing a Kansas City team that only has eight sacks on the season.