Michael Phelps of the US is seen with a red cupping mark on his shoulder as he competes in the Men’s 4 x 100m Freestyle Relay Final at the 2016 Rio Olympics in Rio de Janeiro
Michael Phelps of the US is seen with a red cupping mark on his shoulder as he competes in the Men’s 4 x 100m Freestyle Relay Final at the 2016 Rio Olympics in Rio de Janeiro