2007 was another successful year for O'Sullivan and Kerry. The All-Ireland champions won the Munster title and progressed through the All-Ireland series to beat Cork in the final.[2]
O'Sullivan was also a member of the Kerry squad that won its 36th All-Ireland Title in 2009. In December of that year, he announced his retirement from inter-county football.[citation needed]
Managerial career
Since retirement O'Sullivan has become involved in coaching, selector and as a manager. O'Sullivan was announced as manager of South Kerry GAA in March 2021. This came alongside a role as a Kerry under-20 football team selector under the management of Declan O'Sullivan.[3]