Former Manchester United star Gabriel Heinze has claimed that he was once sparked out by skipper Roy Keane shortly after arriving at the club.
The defender joined United back in 2004 after being signed from Paris Saint Germain, and spent three years at the club before later leaving for Real Madrid in 2007. Heinze became United's first choice left-back until Patrice Evra later took over.
Keane was the captain at the time, and it's fair to say that he wasn't a stranger to having altercations with team-mates and opposition players during his career. And the Irishman allegedly knocked out Heinze shortly after the defender joined the club as his respect was tested by Keane.