sentences:  The main Cup competitions in Wales are the Welsh Cup and the Welsh League Cup.However, for historical reasons, five Welsh clubs (Swansea City, Cardiff City, Newport County, Wrexham and Merthyr Town) play in the English football league system.Wales has produced a number of athletes who have made a mark on the world stage, including the 110m hurdler Colin Jackson who is a former world record holder and the winner of numerous Olympic, World and European medals.