He debuted with the Leinster senior team in October 2014 against Edinburgh.
It was announced in April 2015 that he had been awarded a senior contract with Leinster following completion of his time in the academy.
[4] On 18 March 2017 he was called to the Irish bench for the Six Nations against England after Jamie Heaslip turned his ankle during the warmup.
[citation needed] Leavy made it to the 2019 World Cup but suffered a devastating knee injury, leading to prolonged absence.
[5] On the 5th of April 2022, following advice from a doctor he retired due to injury.