Sport in Wales played at the 2012 Summer Olympics in London, but after no Welsh players were selected for the team they decided to leave the Great Britain team to allow their players greater international exposure. Wales has a strong connection with the sport of boxing, particularly in the South Wales Valleys, with fighters such as Tommy Farr, Freddie Welsh, Jimmy Wilde, Dai Dower and Johnny Owen all competing at the highest level. Joe Calzaghe, born to a Welsh mother and Italian father and raised in Newbridge, retired in 2009 as an unbeaten world champion. Other former world champions include Enzo Maccarinelli, Gavin
Sport in Sheffield junior players. The and Superbike World Champion, James Toseland, comes from Sheffield, as does the climber Joe Simpson. The 2012 Men's Doubles Wimbledon champion Jonathan Marray lives in Sheffield, playing at the Hallamshire Tennis Club. The City of Sheffield Athletic Club has bases at the Don Valley Stadium and the English Institute of Sport. The Sheffield Buccaneers Fencing Club is based in Broomhill. Sheffield City Swimming Club is based at Ponds Forge in Sheffield. The Sheffield Steel Roller Girls roller derby league is based in the city, playing public bouts at Ponds Forge. Sheffield has several field hockey clubs, the