Juan Martín del Potro
Delpo is the pro tennis player from Argentina who defeated Rafael Nadal and 5-time defending champ Roger Federer of the 2009 US Open. He also has won bronze in men’s singles at the 2012 London Olympics and silver in men’s singles at the 2016 Rio Olympics. Additionally, he was first to defeat Federer and Nadal during the same major AND was the only man outside of “the Big Four” to win a major between the 2005 French Open and the 2013 US Open.
Milos Raonic
Canadian Milos Raonic is often described as having “one of the best serves among his contemporaries”. To date, his career highlights include a Grand Slam final (2016 Wimbledon Championships); two Grand Slam semifinals; and three ATP World Tour Masters 1000 finals, 2014 Paris Masters, and the 2016 Indian Wells Masters.