He is a fly half. He was one of the quickest players in history to reach 500 Premiership points; his goal-kicking and place kicking being his particular strengths. Whilst at Gloucester he started in the 2002 Zurich Championship Final (the year before winning the play-offs constituted winning the English title) in which Gloucester defeated Bristol Rugby, scoring one conversion and seven penalties. He also started in the 2003 Powergen Cup Final in which Gloucester defeated Northampton Saints. In the final Mercier scored four conversions, three penalties and a drop goal.
