AMIR Khan feels he can earn a career-defining fight before contemplating retirement.

Bolton’s king of the ring has already surpassed his previous pledge to hang up his gloves by the age of 28, and at 30 feels he has plenty left in the tank and he contemplates his next move.

Much could depend on the outcome of tonight’s Kell Brook v Errol Spence scrap at Bramall Lane, with Khan due to be at ringside for media duties.

Feeling Anthony Joshua’s blockbuster against Wladimir Klitschko has whet the British public’s appetite for big-arena boxing once again, the former Olympian is looking to get back into action in November.

He has not fought in the UK since April, 2014, and would love nothing more than to sample the same sort of home-spun atmosphere as Joshua did at Wembley Stadium.

“It was an incredible fight, like a Rocky movie,” he told The Bolton News. “Boxing needed that kind of fight. To see a big stadium full – that is somewhere I want to be.

“I’d see my career off with a fight like that.

“I’m 30 now and I don’t think there are too many fights left in me. But as time goes on, I change my mind about how long I can go.

“Back at the start of my career I said 28-29. But I feel better now at 30 than I did when I was 25. The reason is because I’m looking after my weight, looking after my diet, I’m training professionally and making sure I’m taking good care.

“Maybe I can add another two or three years?

“I’ve gone past what I originally planned. I never wanted to see 30 in the ring – but the fact I have is down to how I feel right now.”

Khan shelved plans for a summer fight to ensure an operation to correct a long-standing wrist problem was fully healed.

The broken bone, which had reportedly been left unhealed for 13 years, has been protected with a cast.

“I want to be back out and fighting in November,” he said. “I had a good training camp, was there for three months, and was considering taking a fight earlier.

“But I have decided now to wait until after Ramadan because there is no point in rushing and taking a tune-up fight. I’m going for a big one.”

After watching Bolton Wanderers reverse a bad 12 months with promotion, Khan finds himself in a similar situation. A year ago he was stopped by Saul Alvarez in Las Vegas after stepping up two weight classes but feels he has enough support to emulate Phil Parkinson’s team and rise again.

“It doesn’t matter whether you’re a boxer or a footballer, without the fans it can be really hard to motivate yourself,” he said.

“I look at Bolton fans and think ‘wow’ they have stuck with the team even when they’ve had difficult years, they are always behind them.

“I have always had people who stuck by me, who believed in me. And that is what keeps me going.”

After chasing Floyd Mayweather and Manny Pacquiao unsuccessfully for a long-time Khan may feel a British showdown with Brook is the next logical step.

And he says Wanderers will be an inspiration when he starts preparation for his next fight, whoever it may be against.

“Bolton handled themselves the way they needed to last season,” he said. “People were asking questions, it had been a difficult few years. But they answered them.

“There was a lot of pressure on them going into last season – we knew they had better players, were a better team than some of the smaller clubs. They belong in a higher division.

“As a fighter, sometimes when I am under more pressure I perform better and I think that is the way Bolton has been. They have won when people didn’t expect them too.

“I will do that. If people are writing me off then they will get a surprise.”