The Youghal-based super bantam opened the show at the National Stadium and made short work of his first pro foe.
O’Donovan took on Trayan Slavev, and battered the Bulgarian into submision in three rounds.
A real character, ‘The Rebel Rouser’ came into the ring literally dancing to Celtic Symphony and got to work straight away.
After a furious start, O’Donovan began to time his backhand left well as the round progressed before catching Slavev with a big left uppercut on the counter.
Slavev, nose bloodied was already beginning to look ragged and O’Donovan started to target the body. A lovely combo in the closing then seemed to hurt Slavev and the Cork boxer would spend a portion of the break between rounds dancing around.
O’Donovan, sadistically grinning throughout, upped the tempo in the third as Slavev retreated completely into his shell. The end seemed inevitable and after countless unanswered shots, the referee intervened. Slavev was incensed with the decision but could have little complaints
The knockout debut sees O’Donovan start his new professional record at 1(1)-0, while the blown away Slavev drops to 3(2)-14(10)-1.