AN AMERICAN college football coach has denied claims he ate his own snot during a match on Saturday.

Video footage has emerged in which Michigan manager Jim Harbaugh appears to pick his nose and eat it during the Wolverines' 51-14 home win over UCF Knights.

But the Ohio-born boss, 52, said: "I have never eaten a booger in my entire life.

"It might have looked like that was happening. But if you rub your nose and then you bite your fingernail, that's not eating a booger. There was no booger eaten.

"For clarity here, for the record, I have never eaten a booger in my entire life."

Related Stories ‘SHOULDA SPENT LESS TIME IN MY DMS' Ex-porn star Mia Khalifa humiliates American football star for pestering her on Twitter super bowled over That big-hearted American footballer who joined a lonely boy with autism for lunch just surprised him again Tebowing to the MLB NFL quarterback Tim Tebow pursues shock career in baseball after ditching American football Have a go hero American Football linebacker saves unconscious woman from alleged rape Video CATCH OF THE DAY American Football star makes amazing catch to score - but knows absolutely nothing about it

The filthy footage draws stark comparison with Germany chief Joachim Low, who was caught digging around in his nostrils before chewing his findings in a Euro 2012 match against Portugal.

Low, 56, was forced to apologise after his disgusting scratch and sniff at Euro 2016.

Twitter: @benmaller 2 Jim Harbaugh appears to pick his nose during Michigan's win over UCF Knights

Twitter: @benmaller 2 The Wolverines manager then seems to eat his own booger afterwards

The German put his hands down his trousers and smelled his fingers during his side's win over Ukraine.

He later said: "It was adrenaline and concentration. I will try to behave differently in the future.

"I saw the pictures and obviously sometimes you do things subconsciously. It happened and I am sorry."