Match officials, Stats, pre-match build-up. Here's everything you need to know ahead of Saturday night's game.
Ospreys and Cardiff Rugby have played each other on 36 occasions with the Ospreys coming out on top 25 times to Cardiff's 10 and 1 resulting in a draw.
Referee: Marius van der Westhuizen (SARU)
Assistant: Ben Breakspear, Jason Morris (both WRU)
TMO: AJ Jacobs (SARU)
Hear from Head Coach Toby Booth on what he expects from Saturday's Welsh derby here: