McEntee was also very involved in the GAA, both as trainer and player (until an injury ended his promising career). He played at the back with Nobber, and won the 1983 Feis Cup, managed the Meath minor team during the 1990s, and led three clubs (Ballinlough, Syddan, and Castletown) to finals of the Meath Intermediate Football Championship, with two wins from the three. His brother Gerry is a renowned surgeon, who won the All-Ireland Senior Football Championship with Meath in 1987 and 1988. Another brother, Andy went on to manage Meath, while Andy's son Shane also played for Meath, both after the death of their brother and uncle respectively.