Denver tight end Jake Butt is out for the year with a left ACL tear, according to Mike Klis of 9News.

Jake Butt was going through walkthrough-speed coverage on kickoff assignment when he suffered injury, according to a source close to Butt. Similar to how TE Jeff Heuerman tore his ACL during his rookie minicamp in 2015. #9sports — Mike Klis (@MikeKlis) September 27, 2018

The Broncos have confirmed reports.

This is Butt’s second ACL tear in three seasons, as he rehabilitated throughout his NFL rookie year. He injured his right knee in his final game as a Wolverine in the 2016 Orange Bowl against Florida State.

This new tear is to his left knee.

Through three games, Butt has made eight catches for 85 yards, working his way to the starter role over Jeff Heuerman.

Jake Butt gives the thumbs as he walks off the field after a hard hit. pic.twitter.com/kLo2NGh1y5 — ESPN CollegeFootball (@ESPNCFB) December 31, 2016

Michigan has several injured players in the NFL this season, including Baltimore’s Willie Henry, Seattle’s Delano Hill and Amara Darboh, among others.