Head coach Robert Saleh said Ruckert (concussion) won't be available for Thursday's game versus Cleveland, Ethan B. Greenberg of the Jets' official site reports.
Ruckert departed with a concussion in the third quarter of Sunday's win over Washington and wasn't able to return. With the Jets facing a quick turnaround for Week 17, Ruckert won't have sufficient time to clear the five-step protocol before Thursday's contest. Kenny Yeboah will likely work as Tyler Conklin's primary backup until Ruckert is ready to return.