Defending champions Saracens bring South African hooker Schalk Brits into their Champions Cup starting line-up.
Rhys Webb says he will not change his decision to join Toulon in 2018 - even though it means he will not be eligible to play for Wales.
Scarlets boss Wayne Pivac backs the revamped Test selection policy for players based outside Wales as a "step in the right direction".
Ospreys hooker Scott Baldwin has been cleared to play for the first time since having his hand bitten by a lion and could feature against Saracens.
Audio & Video
Ospreys and Wales hooker Scott Baldwin says he could have lost his hand after being bitten by a lion in South Africa.
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