Michaela Tabb is snooker’s leading female referee, known as the ‘Queen of the Baize’. A former nine ball player and captain of the Scottish Ladies’ Pool team, she became the first woman to take charge at a professional ranking snooker tournament in 2002.

She made her World Snooker Championship debut at the Crucible Theatre in Sheffield in April 2003 and refereed the Final when John Higgins defeated Shaun Murphy in 2009. The previous year she refereed her first Masters final at Wembly Arena in London.

Michaela signed this sketch at the Crucible during this year’s World Championships.