Ollie Pattison kept his undefeated professional boxing record intact with a win at David Haye’s Haye Day show at the O2 Arena in London.

And while the London Colney fighter was critical of his performance, he may have picked up a celebrity fan – with the soon to be Manchester United manager Jose Mourinho at ringside.

The light-heavyweight beat Yeovil’s Bryn Wain on points, winning every one of the four rounds, in his fourth professional fight.

Pattison said: “I wasn’t overly happy with my performance and I felt I had a lot more to offer. I was flat at times but that might be because of over training.

“It’s hard to explain. I could have performed better but I’m quite self-critical.

“I was told afterwards that Jose was at ringside for my fight. I never expected that. That was a bit crazy.”

The 26-year-old was down in the programme to fight at 7pm but due to a mix-up with the production company he ended up fighting an hour earlier.

“I had always thought I was on at six so most people did see me. But there were some who read the programme and went for a drink and missed it,” he explained.

He described the event itself as a quality night, and one he wants to experience a lot more.

He said: “It was mad. Walking out into this massive arena, into the ring and then the lights just hit you. The ring seems a bit bigger too.

“But the ring space didn’t bother me. I thrive even more and the occasion didn’t get to me.

“It’s a massive level and hopefully the first of many.”

The main event saw Haye defeat Arnold Gjergjaj with a first-round knockdown, creating plenty of criticism.

Pattison though was in a reflective mood.

He said: “I think Haye was miles to good for him.

“[Gjergjaj] had a good record but the public want [Haye] to fight someone better. It should be a better fight against Shannon Briggs.”

Pattison’s next fight isn’t until September 24, back in the familiar surroundings of Bethnal Green’s York Hall.

But that doesn’t mean he will have his feet up.

He said: “My baby is due in July.

“And I’m still training now. I’ll be doing some strength work, some sparring and keeping sharp. There are lots I want to work on.”