John Muldoon will captain Connacht in the first of two games against French Top 14 side Castres Olympique this week.

Connacht fulfilled expectations of advancing to the next round of the Parker Pen Challenge Cup when finishing ahead of Mont de Marsan by an aggregate 32 points at Crowley Park.

Connacht 17 Ulster 18

Connacht succeeded in notching their biggest win in European competition with a 61 - 13 victory over Roma in the Galway Sportsground on Saturday.