He was soon sent out on loan by Brian Clough to gain some first team experience, joining West Bromwich Albion in September 1989.

He was a regular over the next five years at the Racecourse Ground, playing over 250 times, and winning five Welsh international caps, before joining Sunderland for £200,000 in August 1998.

[4] Another loan spell in 2000–01, this time at Barnsley, led to a permanent move on a free transfer at the end of the season.

[5] In March 2003 he joined Birmingham City for a nominal fee, as goalkeeping cover after Nico Vaesen suffered injured knee ligaments.

Seven minutes into his Blues debut, Marriott collected a tame delivery into the box and dropped the ball at his feet to clear.

On 7 December 2010 it was announced that Marriott would join Premier League side West Bromwich Albion in the new year to become Assistant Sporting/Technical Director.

There has been widespread speculation that he is in the frame to return to the Hawthorns and succeed his former mentor, Dan Ashworth, as Sporting and Technical Director at West Bromwich Albion.