Mason fought 38 times as a professional in a career that spanned 10 years from 1984 to 1994, with 37 wins (34 by knockout) and only one loss, that being to Lennox Lewis when he challenged for the European title in 1991.
After a short retirement he staged a comeback, which ended with a TKO defeat by Lennox Lewis, which aggravated Mason's eye injury.
[2] Mason also played in occasional soccer matches as part of an 'Arsenal Celebrities' team at the old 'Highbury' football ground in North London.
Mason appeared in a special celebrity show of Gladiators that raised money for charity in 1993 which John Fashanu won.
Mason also appeared on the panel of the ITV show You Bet!, and the second episode of the first series of GamesMaster in 1992 playing Sonic Blast Man arcade.