'Ntofontofo' has penned a three-year with the Buccaneers, in a move that took many by surprise, and he says he is raring to go.
"It is not going to be easy because Pirates have good strikers, but I will do my best," Mbesuma says.
The former Kaizer Chiefs, Mamelodi Sundowns and Moroka Swallows forward says his move from Golden Arrows to the back-to-back treble champs was motivated by the desire to compete with the best strikers.
"I think I need competition and I know Pirates is a big team so I just want to compete," he affirms.
Meanwhile, Bucs coach Augusto Palacios says the Zambian striker is the last addition to his squad, which now numbers 32, including Mbesuma.
"This is the last player coming to Orlando Pirates to reinforce the squad for the PSL and Africa. We take this very seriously," Palacios says.
Palacios has not made up his mind whether Mbesuma will face SuperSport United on Sunday in the first leg of the MTN8 semi-finals.