5. Danny Cipriani
In 2008, Cipriani was baited by Josh Lewsey for not putting enough effort in. Reports claim the fly-half then retaliated by telling Lewsey to “shut up or be shut up”. Next thing the then 20-year-old knew he was lying on his back staring up at the sky with a fat lip.
6. Lewis Moody
Moody’s desire to impress on his return after injury in 2004 caused a flare-up with the then Tigers captain Martin Johnson.
“It was my first session and I was extra keen, trying to do everything and hit everything,” Moody told The Sun.
“Tempers flared and ‘Johnno’ and I had a little coming together. He gave me a little dink and I gave him a little dink – but his hurt a lot more!
“It’s just typical training ground stuff. You need that friendly rivalry.”