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
Tiger Jack Fox dispute over a woman. Fox also fought and knocked out in two rounds former light-heavyweight champion Bob Olin, and he knocked out Lou Brouillard in seven. He was kayoed in three rounds by future lightheavyweight champion John Henry Lewis. Two of Fox's more surprising victories came against future heavyweight champion Jersey Joe Walcott. On May 12, 1937, Fox knocked out Walcott in the 8th round. In the following year Fox again defeated Walcott, this time by a ten-round decision. Fox is second on the all-time list for first-round knockouts, and was named to the Ring Magazine's list of 100 greatest