European Champions Cup: pool-by-pool guide to the weekend games

• Nathan Hughes back for Wasps, Northampton make five changes • Jack Nowell returns at Exeter, Manu Tuilagi fit for Leicester v MunsterThe England No8 Nathan Hughes returns from injury on Sunday to make his first start for Wasps since October in a match they must win to have a chance of qualifying for the quarter-finals. Hughes is one of two changes from the side who lost 49-29 to La Rochelle last weekend with Willie le Roux returning at full-back. It is a meeting between the two sides who topped their respective leagues last season only to perish in the play-offs, but while the French arrivis…