NEW HAVEN, CT - AUGUST 26: Madison Keys returns a backhand to Petra Kvitova of Czech Republic on Day 3 of the Connecticut Open at Connecticut Tennis Center at Yale on August 26, 2015 in New Haven, Connecticut. (Photo by Maddie Meyer/Getty Images)
NEW HAVEN, CT - AUGUST 26: Madison Keys returns a backhand to Petra Kvitova of Czech Republic on Day 3 of the Connecticut Open at Connecticut Tennis Center at Yale on August 26, 2015 in New Haven, Connecticut. (Photo by Maddie Meyer/Getty Images)