There’s a chance Nick Mangold might not play again this season.

During a Tuesday conference call, Jets coach Todd Bowles said “it’s possible” the team may have to place the veteran center on injured reserve. After missing four games with a sprained ankle, Mangold aggravated the injury during the Jets’ 41-10 loss to the Colts on Monday Night Football. And now, there’s a chance he could be shut down for the final four games. “Obviously for him to come back after having not played in a while, then come back and get hurt, I’m pretty sure it hurt the guy,” Bowles said. “He’s trying to play, trying to do everything he can, just a bad, unfortunate situation.”

Spiller, Ross waived

The Jets waived running back/kick returner C.J. Spiller and receiver/kick returner Jeremy Ross and also released receiver Mario Alford from the practice squad. They signed former Browns receiver Darius Jennings to take Alford’s place. “We have a couple of guys coming back that we want to see,” Bowles said. “Our receivers are getting healthy. We had too many at the spot for Ross. And [with] Spiller, we wanted to take a look at a guy on the practice squad for a little bit and we wanted to go from there.”

Where was Sheldon?

Defensive end Sheldon Richardson played 60 percent of the defensive snaps (44 of 73) against the Colts and didn’t show up on the stat sheet. Asked to explain his limited involvement in the second half, Bowles tersely said: “It was just game plan.”

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Kaepernick to start

Two days after he was benched in favor of Blaine Gabbert against the Bears, 49ers’ Colin Kaepernick will start against the Jets on Sunday. The polarizing quarterback was replaced after going 1-for-5 for 4 yards in their 26-6 loss in Chicago. He also was sacked five times for minus-25 yards.