Ren Cancan is a female Chinese boxer who has won three world championships, she lost in both of her Olympic Games, to which double-champion British professional boxer?
Nicola Adams Nicola Adams {'1': ", '2': ", '3': ", '4': "} (born 26 October 1982) is a British professional boxer. The first woman to win an Olympic boxing title, she is the 2012 and 2016 Olympic gold medallist in the women's flyweight division. As of 27 May 2016 she is the reigning Olympic, World, Commonwealth Games and European Games champion at flyweight.
Lennox Lewis Lennox Claudius Lewis, {'1': ", '2': ", '3': ", '4': "} , {'1': ", '2': ", '3': ", '4': "} (born 2 September 1965) is a former professional boxer who competed from 1989 to 2003. He is a three-time world heavyweight champion, a two-time lineal champion, and remains the last heavyweight to hold the undisputed title. Lewis holds dual British and Canadian citizenship; as an amateur he represented Canada at the 1988 Summer Olympics, winning a gold medal in the super-heavyweight division after defeating future world champion Riddick Bowe in the final.