Where and when: Optus Stadium, Saturday July 6, 6.10pm AWST
TV, radio and online: Click here for broadcast guide
What it means for Fremantle: Going down to Melbourne and Carlton has left the Dockers clinging to eighth spot and they will probably need an unexpected scalp or two on the run home to reach finals. Ending an eight-game losing streak against West Coast is reasonable incentive, too.
What it means for West Coast: With rivals slipping up, the Eagles have moved within sight of a top-two finish but they don't have much wriggle room, so victory over Fremantle is a must with Collingwood coming to town next round.
The stat: If the Eagles register a ninth consecutive win over Freo, it will equal their 9-0 run at the start of Western Derby history after the Dockers entered the AFL in 1995. Overall, West Coast holds a 29-20 advantage.
The match-up: Nat Fyfe v Elliot Yeo
Fyfe missed the round four derby after suffering a nasty concussion and the Dockers will rely heavily on their superstar midfielder this Saturday night. Remarkably, Fyfe has never won a Glendinning-Allan Medal and the Official AFL Player Ratings' No.2-ranked player will likely have to shake Yeo's (No.20) attention to do it.
Nat Fyfe and Elliot Yeo are set to be reacquainted in the 50th Western Derby. Picture: AFL Photos
It's a big week for: Joel Hamling
It's not often West Coast spearhead Josh Kennedy goes goalless – it had been 68 games before Hawthorn full-back James Frawley again had his measure last Saturday – and without Alex Pearce (ankle) by his side Hamling will need plenty of defensive help to restrict the dual Coleman medallist. Ditto for Griffin Logue on in-form Jack Darling coming off a five-goal bag.
Big call: West Coast skipper Shannon Hurn to clinch a fourth Glendinning-Allan Medal from the past five Western Derbies.
Prediction: Eagles by 14 points