Big game at the top
Vikings B can take a massive step towards promotion with a win over Valkyrs B this weekend.
A win for the league leaders would also seal a league double over the westerners, who have their own motivation to get the victory.
Maximum points for Valkyrs on Saturday would draw them level on points at the summit.
Elsewhere in PwC Mixed Division One, Harlequins A are up against Saracens Sabres, while bottom side Vikings C play Bacchas C.