George Clooney to 'run 2016 London Marathon after losing a bet with Christy Turlington'

The Gravity actor was set up

George Clooney speaking at Comic Con in New York (Getty)

George Clooney might want to start browsing for nipple shields and energy gels, as it's been reported he could be about to start training for next year's London Marathon.

Former model Christy Turlington Burns said on Sunday that the actor had promised he'd take part in the race if she completed the 26.2-mile course in under four hours.

But she smashed the four-hour mark, coming in at three hours 45 minutes, leaving Clooney the option to either enter next year's lottery or sheepishly back out.

"Thinking about George running a marathon and having a good night's sleep before the race will help my time," Turlington Burns said before the race.

She added: "The moment I cross the line, I want to go for a pint."

However, a representative for Clooney told The Independent that the quotes had been taken out of context. They said: "George congratulates her on the marathon and the incredible work she's done for her charity."

Maybe 2017 will be his year.