RIO DE JANEIRO, (Pakistan Point News - APP - 10th Augst,2016) - Michael Phelps bagged the 21st gold medal of his incredible Olympic career on Tuesday, anchoring the United States to victory in the 4x200m freestyle relay. Phelps, who just over an hour earlier collected his 20th gold for a superb victory in the 200m butterfly, led the United States home for a win in 7min 0.66sec after Conor Dwyer, Townley Haas and Ryan Lochte built up a huge lead after the first three legs. Britain's quartet of Stephen Milne, Duncan Scott, Dan Wallace and 200m free world champion James Guy took silver in 7:03.13. Bronze went to Japan's Kosuke Hagino, Naito Ehara, Yuki Kabori and Takeshi Matsuda in 7:03.50. It was a fourth straight Olympic 4x200m free gold for the US men.