Munster Nagle made his Munster debut against
Dragons in March 2010. He was on a full contract with
Munster, having been promoted from the academy for the 2010–11 season. In November 2010, he was named Man of the Match in Munster's historic win over
Australia at
Thomond Park. Nagle was part of the Munster A team that won the
2011–12 British and Irish Cup on 27 April 2012. Nagle signed a one-year contract extension with Munster in early April 2013. In April 2014, it was announced that Nagle would be leaving Munster.
Loan to Newcastle Falcons It was announced in February 2014 that Nagle would be joining
Aviva Premiership side
Newcastle Falcons on a short-term loan.
London Irish In February 2016, Nagle made his return to professional rugby when he signed with
Aviva Premiership side
London Irish for the remainder of the 2015–16 season.
Leinster On 16 February 2016, it was announced that Nagle will join
Leinster for the 2016–17 season.
Loan to Ulster Nagle joined
Ulster on loan in November 2018, in a deal that saw him remain with the province until the end of the 2018–19 season.
Zebre After the completion of his loan to Ulster, Nagle was released by Leinster, and he headed to Italy to join
United Rugby Championship side
Zebre, where former
Munster and
Ireland scrum-half Michael Bradley is head coach. Nagle announced his retirement from professional rugby in May 2021. ==International==