Munster went into their round 5 Champions Cup clash away to Racing 92 on 12 January 2020 knowing that they had to win to keep alive their hopes of progressing to the quarter-finals of the tournament, but despite leading the French club with ten minutes to go, late tries from Racing secured a 39–22 win for the home side. Munster needed results elsewhere to go their way if they were to stand any chance of qualifying for the quarter-finals as the final round of pool matches took place, but Glasgow Warriors 45–7 win against Sale Sharks ended those hopes before Munster's final game against Ospreys had even taken place. In the event, Munster won 33–6 against Ospreys, with Craig Casey, who made his European debut for the province in the defeat to Racing, scoring his first try for Munster, and Calvin Nash, Jack O'Sullivan and Ben Healy making their European debuts for the province.