Mo Farah came second in a school parents' race to a bloke wearing jeans

Mo Farah's wife has thrown him under the bus massively, revealing that her Olympic legend-of-a-husband came second in a dads’ running race on school sports day.

But to make matters worse for Sir Mo, it turns out the lad he lost to was wearing jeans too.

And in true dad style, the bloke didn't stop banging on about his historic victory.

Having won gold in both the 5,000 and 10,000 metres at the London 2012 and Rio 2016 Games, Farah is widely regarded as greatest ever long distance runner.

But that doesn't necessarily mean the 39-year-old father of four is rapid over a short distance – and that was laid bare for all to see at a school sports day.

Appearing on the Performance People podcast, Sir Mo's wife Tania aired out his dirty laundry.

“Did you know that he took part in the parents’ race at sports day and came second? And the guy that won it was wearing jeans,” she said.

To which Sir Mo added: “No, third place. I was like ‘oh no,’ and I had my spikes on, I thought ‘I'm ready for this’.”

Rather unsurprisingly, the man-in-question refused to let people forget his upset victory – of course.

“The dad that won dined out on it for an entire school year,” Tania continued.

As Sir Mo said: “He was tagging me as well saying ‘have some of that.’ I can’t sprint.”

However, Tania did defend her husband.

“Mo’s not a sprinter, that’s what it is, the parents’ race is always 100 metres,” she said.

“People just assume Mo can run fast, but what they don't realise is that his running fast is sustained running over many laps.

“So a straight 100 metre sprint, not so much.”

Now, we're not sure whether these were some expensive Amiri jeans or a rascal pair of early 2000s Diesels, but either way, it's rather embarrassing for the Olympic icon.

At least he can see the funny side of things, though.