FLORHAM PARK, N.J. — Jets rookie linebacker Jordan Jenkins was forced to leave Monday’s practice with a calf injury. It’s unclear when he’ll return to the starting lineup.

“I don’t know the severity of it yet,” Jets coach Todd Bowles said, referring to the third-round pick.

The training staff has been busy lately. In addition to monitoring the rehab of Matt Forte (hamstring) and Muhammad Wilkerson (leg), the team has been keeping an eye on receiver Quincy Enunwa (concussion), inside linebacker Erin Henderson (stinger) and cornerback Dexter McDougle (hamstring). Not to mention, tight end Jace Amaro and receiver Kenbrell Thompkins (sore groins) didn’t practice Monday.

“I hope they’re not serious,” Bowles said. “We’ll see how they feel tomorrow.”

Now, Jenkins could potentially be sidelined for a while.

Though he’s still adjusting to the NFL learning curve, he’s impressed his teammates so far. “His motor’s there,” defensive tackle Sheldon Richardson said. “He wants to be better than everybody. So he’s going to be alright.”

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Bye to bullying

More than 150 educators from the tri-state area attended an anti-bullying symposium at the Jets’ facility. The event, which featured two panel discussions with experts and former Jets running back Bruce Harper, was conducted through the team’s partnership with STOMP Out Bullying, the nation’s leading anti-bullying and cyberbullying organization.

Cro a Colt

Former Jet Antonio Cromartie finally found a home, signing a one-year deal with the Indianapolis Colts. The Colts’ injury woes on defense led them to take a flier on the 32-year-old corner following his workout Monday with the team.

Jet-cetera

Jets videos

Rookie linebacker Darron Lee had two picks. The first was against Ryan Fitzpatrick, the second on a Bryce Petty pass in the end zone . . . Rookie quarterback Christian Hackenberg was intercepted twice by corner Dee Milliner . . . RB Khiry Robinson (leg) did some team drills for the first time in camp.