It's time for fight night in the heart of the East End tonight, Thursday.

Limehouse venue The Troxy will host Clash of the Corporates - a white collar boxing extravaganza putting the talents of 20 men and women to the test.

Jointly organised by luxury fitness centre Limehouse Marina Elite and City Warriors it will bring the sport back to its east London roots while also marking St George’s Day.

Its Wharf and City-based competitors have undergone four months of intense fitness and in-ring training at the gym, led by LME personal trainer Gary Stasek.

Doors open at 6pm.

Clash Of The Corporates isn’t a simple, six-minute stint in the boxing ring for white-collar competitors.

Wapping dad Stuart Caine is testament to that.

The 34-year-old said he had put his life on hold in preparation for the showcase at The Troxy, organised by luxury fitness centre Limehouse Marina Elite in partnership with City Warriors.

First came six weeks of fitness and circuit training in January, led by LME personal trainer Gary Stasek. This was followed by sparring with fellow competitors training for the April 23 event.

It was these in-the-ring encounters that brought home to Stuart the extent of his commitment.

“The actual boxing was one of the toughest things I have ever done,” said IT consultant Stuart. “The level of fitness is gruelling and a shock to the system. It’s on a different level to the army – when I was serving, I didn’t have any real fights.

“But I’ve put my life on hold for it – it means that much to me. There’s been no alcohol, no going out, nothing at all for four months.

“I’m not the best boxer out of everyone but I’d say I’m the most improved. All I can do is do well on the night. Win or lose, I will have done my best.”

After his first session, which left him questioning his decision to take part, he enlisted the help of Gary on a one-to-one basis. But he said it was in the group sessions that he found camaraderie and team spirit.

There will be 10 fights on the night, each consisting of three two-minute rounds.

A crowd of around 1,000, including special VIP tables, is expected to watch.

“We’ve all bonded really well but, on the night, you just have to put it to one side,” he said.

“We’re all competitive – but we all bash each other up anyway. The only difference is we’re going to do it in front of a crowd.”

Go to limehousemarinaelite.com for details and ticket information.