In the following season Elwood was replaced by Pat Lam. McKeon made three appearances in 2013–14 Heineken Cup, coming off the bench in a memorable win over Toulouse and starting two more games. He made 11 appearances in the 2013–14 Pro12, starting in all but one of these games. During the course of the league season McKeon scored three tries, with these coming against Munster, Scarlets and Benetton Treviso.