Kelly Slater

U.S. surfer Kelly Slater competes in the 2015 Oi Rio Pro World Surf League competition at Barra da Tijuca beach in Rio de Janeiro, Brazil, Tuesday, May 12, 2015. (AP Photo/Leo Correa)

U.S. surfer Kelly Slater competes in the 2015 Oi Rio Pro World Surf League competition at Barra da Tijuca beach in Rio de Janeiro, Brazil, Tuesday, May 12, 2015. (AP Photo/Leo Correa)