Martyn Walter Margetson (born 8 September 1971) is a Welsh football coach and former professional footballer who is a goalkeeping coach for the England national team. A youth player at Manchester City, where he went on to appear over 50 times, he spent time on loan at Bristol Rovers, Bolton Wanderers and Luton Town before moving to Southend United on a permanent basis in 1998 where he remained for one season, joining Huddersfield Town in 1999. After signing for Cardiff City in 2002, he went on to win his first and only cap for Wales in a friendly with Canada in May 2004. He retired from playing at the end of the 2006–07 season, becoming a full-time goalkeeper coach at Cardiff City. He has since had similar roles at West Ham United, Wales, Crystal Palace and Swansea City. Career Manchester City Margetson began his career with Manchester City, signing as a YTS trainee at the age of 18 where he featured largely as understudy during a downturn in the club's fortunes. His full debut came in May 1990, deputising for the suspended Tony Coton in a Manchester derby at Old Trafford, and he retained his place for the following match against Sunderland. In the next two seasons he made four appearances, but did not make a single first team appearance in the two seasons after. His next first team appearance was an unusual one. In a League Cup match against Wycombe, Manchester City had used both outfield substitutes when Richard Edghill sustained an injury and could not continue. Margetson, the only remaining substitute, was introduced as a striker for the final few minutes of the match. Despite performing well in the run-in to the club's relegation battle to the 3rd-tier of English football in 1998, he was guilty of picking up a back pass to concede a free-kick inside the penalty area against Queens Park Rangers. He proceeded to hand the ball to the opposing forward Mike Sheron who then quickly took the free kick, passing to a team-mate who stroked the ball into an unguarded net. This goal later proved to be costly as City were relegated in QPR's stead at the end of the season. Southend United Margetson moved on at the end of season on a free transfer for a spell with Southend United, making his debut on 8 August 1998 in a 2–1 victory over Scarborough.