London 2012 - Lebron James of Team USA celebrates a point during a group match.

London 2012 - Team USA's Andre Iguodala, Kevin Durant, Lebron James and Russell Westbrook have a laugh on the sidelines. The country beat group opponents Nigeria 156-73.

18th August 1928: Two members of the Canadian Olympic team L James Ball who won the 400 metres silver medal at the 1928 Amsterdam Olympics and A Percy Williams (1908 - 1982) who won gold medals at 100 and 200 metres at the 1928 Amsterdam Olympic games, (Photo by Edward G. Malindine/Topical Press Agency/Getty Images)

Athens 1896-Athletics-Triple jump-CONNOLLY James (USA)1st.

(L-R) Silver medalist Rebecca James of Great Britain, gold medalist Kristina Vogel of Germany and bronze medalist Katy Marchant of Great Britain celebrate during the medal ceremony after the Women's Sprint Finals race on Day 11 of the Rio 2016 Olympic Games at the Rio Olympic Velodrome on August 16, 2016 in Rio de Janeiro, Brazil.

Kristina Vogel of Germany celebrates after winning gold during the Women's Sprint Finals gold medal race against Rebecca James of Great Britain on Day 11 of the Rio 2016 Olympic Games at the Rio Olympic Velodrome on August 16, 2016 in Rio de Janeiro, Brazil.

Elis Ligtlee of the Netherlands competes against Rebecca James of Great Britain during the Women's Sprint Semifinal race on Day 11 of the Rio 2016 Olympic Games at the Rio Olympic Velodrome on August 16, 2016 in Rio de Janeiro, Brazil.

Kristina Vogel of Germany defeats Rebecca James of Great Britain during the Women's Sprint Finals gold medal race on Day 11 of the Rio 2016 Olympic Games at the Rio Olympic Velodrome on August 16, 2016 in Rio de Janeiro, Brazil.

Kristina Vogel of Germany competes against Rebecca James of Great Britain during the Women's Sprint Finals gold medal race on Day 11 of the Rio 2016 Olympic Games at the Rio Olympic Velodrome on August 16, 2016 in Rio de Janeiro, Brazil.

Mohamed Ayoub Ferjani (L) of Tunisia and James-Andrew Davis (R) of Great Britain compete during Men's Individual Foil on Day 2 of the Rio 2016 Olympic Games at Carioca Arena 3 on August 7, 2016 in Rio de Janeiro, Brazil.