Gueye vs Keane and the phenomenon of friendly fire - who else fought with their teammates?

Rare, bizarre, awkward, even appalling, but not unprecedented. The fight that broke out last night at Old Trafford between Everton's Idrissa Gana Gueye and Michael Keane, and which ended up in Gueye's straight red card, attracted worldwide attention.

The Senegalese midfielder was furious and couldn't control himself as the spat started at the edge of the box.

The ref decided to send him off, leaving the visitors with ten men on the pitch for another 77 minutes, which didn't prevent David Moyes' side from a victorious night at the Theatre of Dreams despite the previous commotion.

"Do you know something, I quite like it when my players have a fight," said Moyes. "I'm sort of saying I want them to be tough.

"I don't want them to accept someone who is not doing well enough. Someone didn't do the right thing.

"If you want a winning team, and that resilience and toughness that got us the result, you have to have players who are going to act that way."

Gueye himself took to social media to apologise for his behaviour...

"I want to apologise first to my teammate Michael Keane," he wrote. "I take full responsibility for my reaction.

"I also apologise to my teammates, the staff, the fans and the club.

"What happened does not reflect who I am or the values I stand for. Emotions can run high, but nothing justifies such behaviour.

"I'll make sure it never happens again," said Gueye, who personally apologised to the entire squad after the match.

However, that is not the first-ever clash between teammates, at least when it comes to English teams.

Probably the most iconic battle was the one between Newcastle United's Lee Bowyer and Kieron Dyer back in April 2005. Aston Villa's midfielder, Gareth Barry, had to step in to break them up.

With Newcastle already down to 10 men and trailing Aston Villa 3-0 at home, both players were sent off - with Dyer given a three-match ban and Bowyer suspended for seven games.

Ten years prior, in November 1995, Blackburn Rovers and England teammates David Batty and Graeme Le Saux had clashed during the Champions League game at Spartak Moscow.

The incident came after only four minutes and left-back Le Saux broke his hand after punching Batty.

Last but not least, two years before that, Liverpool goalkeeper Bruce Grobbelaar went berserk following his teammate Steve McManaman's poor clearance, which allowed Everton to score in a Merseyside derby at Goodison Park in 1993.

McManaman argued back, angering Grobbelaar further as he grabbed the prodigy and pushed him in the face. Still, McManaman pushed back once again, but that was the end of the spat, which saw no red cards being shown.