21 Apr 14
Munster recorded a 32-23 bonus point win away to Connacht on Saturday night and returned to second place in the RaboDirect PRO12 standings.
Sweetnam, who has represented Ireland in Hockey (U16) is understood to have informed his Gaelic club and Cork hurling officials about his decision over the weekend.
Joining Darren in the Academy is Munster U20s team-mate Harry McNulty. Harry lined out in the centre for the U20 side and impressed throughout the campaign. He has previously represented Irish U19s and Dublin University, winning the IRFU Club Sevens title with them in May.