 On 3 November 2007 Maccarinelli successfully defended his WBO cruiserweight title against Mohamed Azzaoui winning by TKO in the 4th Round.Maccarinelli's next fight was an all-British unification fight against the WBA/WBC champion David Haye.The fight took place on 8 March 2008 at the O2 Arena, London and was much hyped in the weeks running up to the event, being given the tagline "bombs away" (referring to the high KO percentages and punching power both men boasted).