In the eyes of many football fans, Roy Keane is the greatest captain of the Premier League era.Only a handful of players rival the Manchester United legend for that particular title, including John Terry, Patrick Vieira, Steven Gerrard, Tony Adams and Vincent Kompany.But Keane inspired those around him and ensured standards never slipped, whether that was in a match or even in training.The Irishman could be ferocious at times, especially on those he felt weren’t pulling their weight or were underperforming.But without Keane alongside them, many United players wouldn’t have won the silverware they did under Sir Alex Ferguson.p1emet3rksroqjpq7op1bp54269.jpgKeane helped the Red Devils win seven Premier League titles, four FA Cups and the UEFA Champions League.He didn’t play in the unforgettable 1999 Champions League final against Bayern Munich due to suspension but United wouldn’t have advanced past the semi-finals without their skipper, who produced one of the best individual performances in the club’s history away at Juventus.Now a pundit, Keane hasn’t lost any of his edge since hanging up his boots in 2006.p1emet4g7217171vbp1dab1c9bs1hb.jpgHe’s still just as terrifying now, despite the fact he turns 50 next year.One of the things that made Keane such a good player was his winning mentality.He absolutely hated losing, as this brilliant clip from a Man Utd team bonding quiz from the 1990s proves.Keane - deadly serious, naturally - says to the quizmaster: “John, were you asked to change the questions about two minutes ago? I think you were, weren’t you? You were asked to change all the questions.”p1emetn54b1pmk14m24vk1e7lrtcs.jpgThe midfielder clearly felt the quiz had been fixed, much to the amusement of his teammates.When Sir Alex Ferguson and his fellow coaches then celebrated after winning the quiz, Keane reacted by getting up from his seat and storming off.“You’ve fixed it man, you know you have,” Keane said as he left the room.Watch the video here...

Outstanding. You wouldn’t expect anything less from Keano.

The clip is currently being shared by Man Utd fans on social media, and here’s some of the best reaction…

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