Las Vegas placed Crosby (ankle) on its injured reserve list Wednesday.
Crosby (ankle) is scheduled to undergo a tightrope procedure Tuesday to address the Grade 3 sprain he had aggravated Week 14, Tashan Reed of The Athletic reports.
Crosby (ankle) is expected to undergo season-ending arthroscopic ankle surgery, Adam Schefter of ESPN reports.
Crosby registered five tackles (three solo) in Sunday's 34-19 loss to the Dolphins.
Crosby (ankle) did not participate in practice Thursday.
Crosby recorded three tackles (one solo), including one sack in Sunday's 20-15 loss to the Rams.
Crosby (ankle) did not practice Thursday.
Crosby (ankle) was listed as a DNP on the Raiders' injury report Wednesday, Sarah Barshop of ESPN.com reports.
Crosby (ankle) doesn't hold an injury designation heading into Sunday versus the Steelers, Paul Gutierrez of ESPN.com reports.
Crosby (ankle) didn't practice Wednesday.