WHITE SULPHUR SPRINGS, W.Va. — The Broncos have lost one of their top defenders and a team captain.

Inside linebacker Alex Singleton suffered a season-ending ACL injury and is being placed on injured reserve, Head Coach Sean Payton announced Wednesday.

"He had an ACL in last week's game, oh, midway through the game," Head Coach Sean Payton said. "One in which, though, shoot — he played two-thirds of the game with [the injury]. It was kind of remarkable. And then he reported. He felt a little soreness. They looked at it, we looked at it some more and then sure enough. He'll be scheduled for surgery probably about two weeks from now."

Payton also announced the Broncos are promoting running back Tyler Badie to their active roster.

Singleton, who is in his third season with the Broncos, led Denver in tackles in both 2022 and 2023. A season ago, Singleton posted a staggering 177 tackles, which set a franchise mark since at least 1991.

Through three games, Singleton was averaging more than 10 tackles an outing. He also recorded an interception on the Broncos' first defensive series of the year.

Despite the injury, Singleton played every snap in the Broncos' Week 3 win over the Buccaneers. Payton said Singleton's injury occurred on the play in which Brandon Jones intercepted a pass in the first quarter.

Badie, a 2022 sixth-round pick by the Ravens, led the Broncos in rushing in Week 3 with nine carries for 70 yards. The Missouri product has appeared in three career games and totaled 112 all-purpose yards and a touchdown.