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.
Cycling: Bostock nominated for national champion of the year
Manxman one of six riders on British Cycling shortlist
Football: Railway Cup hopefuls all maintain pace in premier league
Castletown stay four points clear atop Division 2
Rugby: Vagabonds Ladies stay top with another victory
Vagabonds men and Douglas also take respective wins on home soil
Hockey: Harlequins A beat rivals to close in on prem leaders
Bacchas B take important victory in battle for top-flight safety