The Raiders signed linebacker Curtis Bolton in a corresponding move. Kiser went down with an apparent leg injury on Sunday, though the exact details of the injury are still unknown. Kiser was a frequent contributor on special teams for the Broncos last year, logging 81 tackles while appearing in 10 games. 

There hasn't been an official update on Kiser, so the issue could be as minor as soreness or cramping. However, the fact that he was carted off likely means it is a serious injury. Kiser appeared in 10 games for the Broncos last year, mostly working on special teams. He totaled 81 tackles in that role. 

Denver plucked Kiser off the Rams' practice squad while dealing with a handful of linebacker injuries last year. He appeared in 10 games for the Broncos but got most of his run on special teams. Kiser will be competing for a rotational role in Las Vegas this summer.

The Broncos gave Kiser $600,000 guaranteed to jump over, replacing Josey Jewell, who is done for the season with a torn pec. Kiser knows the basics of coach Vic Fangio's defense after playing for Brandon Staley in L.A. last season. Kiser started nine games for the Rams last season and appeared on 17 special teams snaps in Week 2.