Leonard Williams' back bothering him, misses practice for Jets

Leonard Williams brings down Case Keenum for one of his two sacks in Jets' win over the Broncos. Photo Credit: Lee S. Weissman/Lee S. WeissmanFLORHAM PARK, N.J. — A new addition, and very important player, popped up on the Jets' injury report Thursday. Leonard Williams did not practice because of a back issue.

Todd Bowles said Williams woke up with back pain Thursday morning, and he doesn’t know how serious it is.

“We’ll see,” Bowles said.

The Jets coach rarely, if ever, reveals much about a player’s health. But backs can be tricky. It would be a big loss if Williams can’t play Sunday against Andrew Luck and the Colts.

Williams is coming off a strong game against the Broncos. The defensive end…