Manchester United legend Roy Keane showed a different side to his on-screen persona and no-nonsense personality after his meaningful interactions with one Sunderland staff member. That is according to former Sunderland striker Chris Brown, who played under ex-Manchester United captain Roy Keane during his time at the Stadium of Light. Roy Keane wasted no time in taking his first steps into management after he called it time on his legendary playing career in 2006 following a brief spell with Celtic. The 53-year-old Irishman was appointed Sunderland head coach in 2006 and secured the club’s pro…