Malleck (undisclosed) was waived off injured reserve by the Broncos on Tuesday, per the NFL's official transaction log.
Malleck landed on injured reserve with the undisclosed injury in early August, and it remains unclear whether he is still ailed by the injury. The 25-year-old has struggled to stick on a roster since going undrafted in 2015 but will look to latch on elsewhere.
Malleck has struggled to find an NFL roster since going undrafted in 2015. He will now be sidelined for the remainder of the season unless he and the Steelers can come to terms on an injury settlement.
An undrafted free agent back in 2015, Malleck has struggled to remain rostered in the NFL, with his only regular-season action coming in two games with the Texans last season. He tallied just one reception for three yards during those contests before being released in the offseason. Malleck will look to shine during minicamp and potentially training camp with the hopes of earning a spot on the Steelers' final roster.
Malleck was cut by the Texans on Monday, Aaron Wilson of the Houston Chronicle reports.
Malleck appeared in just two games for Houston last season. With the addition of third-round pick Jordan Akins via this April's draft, Malleck became an expendable asset in Houston.