Olympics-Swimming-Phelps wins 200m butterfly for 20th gold

RIO DE JANEIRO, Aug 9 (Reuters) - Michael Phelps of the United States claimed the 20th Olympic gold medal of his career on Tuesday by winning the 200 metres butterfly final in a race that made up for a stinging 2012 defeat to South African Chad Le Clos. Japan's Masato Sakai took the silver medal and Hungary's Tamas Kenderesi the bronze. Le Clos, whose run-up to the Games was overshadowed by news that both his parents had cancer, finished fourth. Phelps now has 24 Olympic medals with the chance of another later on Tuesday in the 4x200 freestyle relay. (Reporting by Alan Baldwin, editing by Greg Stutchbury)