Mick is that kind of a rat that should have never become a Blood Bowl player. Mick is a small, frail skaven, without any sense for tactics, gameplay and the ball.
From his early childhood on, Mick was joshed by other skavenkids calling him "the mouse", a nickname, he never got rid of. But Mick always had a dream: Becoming a famous Blood Bowler. One part of the dream came true, he actually is a (amateur) Blood Bowl Player. The other part will never be fulfilled: he will never be famous, due to his lack of skills. (First 15 games without any Starplayer point illustrate that fact)