 His last game was the 2017 qualifier defeat to Waterford on 8 July 2017 

After a two-year hiatus and a period of uncertainty surrounding the competition, the Railway Cup returned in 2012 with Fennelly starting at midfield as Leinster faced Connacht in the decider.The game was effectively over at half time, with Leinster powering to an eventual 2–19 to 1–15 victory.In December 2018 it was announced that Fennelly had joined the Kildare senior footballers' backroom team as their performance coach.