BRITAIN’S 5000m world champion Mo Farah has admitted that in retrospect he wishes he hadn’t bothered.

Farah took the title after beating American Bernard Lagat and Ethiopia’s Imane Merga in a 13-minute race that’s left him more knackered than he’s ever been in his life.

He said: “I’m not saying it isn’t nice to win but today I am so unbelievably sore, and as a normal sane person there’s a limit to how into running you can be.

“It’s fairly irrelevant as a skill since man stopped having to run away from giant tigers.”

Farah continued: “Sport looks pretty easy but you wouldn’t believe the effort that goes into it behind the scenes. For years everything has been about either running or jogging – I am literally never going at a civil pace.

“Often I’m like, ‘I can’t, I’m totally fucked’, and the trainer’s like, ‘no, you’ve got to keep running’. Really shouting at me, in a way that would be considered totally unacceptable if you worked in an office.

“And I’ve only been able to go out late on Thursday nights. On the day before a race you can’t go out at all, not even to the cinema.”

He added: “Of course, I’m not thinking about the Olympics. Between ourselves, probably what I’ll do is say that I’m going to turn up and then just say I’ve hurt my knee.

“It’s not entirely honest but will save a lot of awkwardness.”