Former world champion David Haye has announced his next opponent as he builds his second career after his return from retirement.

The Bermondsey fighter will face undefeated Arnold “The Cobra” Gjergjaj on Saturday, May 21, at The O2 in London, another stop – he hopes – on his journey back to the summit of world boxing.

He used the Greenwich venue for his return to the ring and 16,000 saw him KO Mark de Mori after just 121 seconds, the 25th knockout in his 27 professional wins.

The Hayemaker now turns his attentions to the 31-year-old Kosovo-Albanian also is a KO specialist. His 29-0 record contains 21 finishes before the bell. The Cobra stands at 6ft 5ins and tips the scales at 112kg, both this attributes likely to test the Brit.

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Haye said: “I said I wanted to fight regularly and that’s exactly what I’m doing. Every two to three months I want to be knocking somebody out and working my way back into title contention.

“Fighting a big heavyweight like The Cobra has really got my juices flowing, taking a unbeaten fighters ‘0’ from him always makes the victory that much sweeter.

“The reaction to the first Haye Day event was incredible with a sell-out crowd at The O2, music acts, A-list guests like Idris Elba and Benedict Cumberbatch, and let’s not forget breaking TV viewing records with a 3.2m peak audience on Dave.

At The O2: David Haye is pushed away by the referee after knocking out Mark De Mori of Australia

“May’s Haye Day will be even bigger and better. We’ve listened to fans and have a stronger undercard and even bigger musical acts to provide plenty of entertainment before my ring walk.”

Gjergjaj said: “This is the biggest fight of my life and it is an opportunity I will not waste. Fighting in a huge arena against a former world heavyweight champion is massive motivation for me and gives me a chance to prove my skills to the boxing world.

“I respect ‘The Hayemaker’ – he was a very good fighter five years ago – but his time is over and I’m coming to win. I’m warning David Haye that he should not underestimate me – I’m unbeaten and I intend to stay that way.”