Lewin John Nyatanga (born 18 August 1988) is a Welsh former professional footballer who last played as a defender for League One club Northampton Town on loan from Barnsley. He previously played for Derby County and Bristol City, as well as Sunderland and Peterborough United. He has made 34 international appearances for the Wales national team, having previously held the record for the youngest player to represent the country when he made his international debut at the age of 17. In February 2018, it was reported that he had retired from football to focus on family life and is now a personal trainer. Club career Derby County Nyatanga developed as a player through Derby's academy, signing professional terms for the club in August 2005 and making his senior debut in a League Cup tie against Grimsby Town, going on to feature in over half of Derby's league games during the 2005–06 season, primarily at centreback, scoring his first goal a 2–1 win over Stoke City. Despite starting the 2006–07 season in the first team picture, Nyatanga lost his place in the first team and was loaned out to fellow Championship side Sunderland for four months in October 2006. Whilst at Sunderland, Nyatanga played left back due to an injury to Stephen Wright and Clive Clarke leaving on loan. Sunderland boss Roy Keane was reportedly interested in signing Nyatanga in a £1.5m move in January 2007. Derby manager Billy Davies said there was a possibility that Nyatanga could join Sunderland permanently, however, no bid was ever tabled by Sunderland. Nyatanaga returned to Derby in January 2007, only to join Barnsley a month later on a three-month loan deal. Nyantanga helped the club to some vital wins during his time at Barnsley, including a surprise 1–0 win over promotion hopefuls Birmingham City and a vital 3–1 win away over relegation rivals Southend United. Nyantanga was recalled to Derby on 16 April after injury and suspension, respectively, to two key defenders in Michael Johnson and Darren Moore, left Derby with only one natural centre half. In his first game after returning to Derby he scored the winner against Luton Town on 20 April which sent Derby back into the automatic promotion places and relegated Luton. Nyatanga lost his place when Moore and Johnson returned, and was not in the 16 for the 2007 Playoff victory. Nyatanga signed a new 4-year contract in the