Career
He has played with Kerry at every level and with his club side Tuosist and later Dr Crokes. He first played with the Kerry GAA minor team in 2004 winning a Munster Championship as a sub, he was also part of the panel that lost the All Ireland final to Tyrone. He then moved on to the Under 21 team, he played in 2006 & 07 but had little success.
In 2007 he joined the Junior side but had little success. Following on from his Under 21 success in 2008 he again played with the Junior team winning a Munster title, Kerry later lost out to Roscommon in the All Ireland semi final. After no success in 2009 Kerry were back as Munster Champions in 2010 with O Sullivan again playing a key role, they later lost out to Sigo in the All Ireland final.
At club level he helped Tuosist to the County Novice title in 2008.