Earls played for Munster during their historic 15–6 win over Australia on 16 November 2010. Earls was also part of the Munster team that beat Leinster to win the 2011 Magners League Grand Final. He injured his knee in the first minute of Munster's Pro12 match against Leinster on 4 November 2011, and was ruled out for 4–6 weeks. He made his return against Scarlets in Munster's 2011–12 Heineken Cup Round 4 fixture on 18 December 2011.
