ATLANTA, GA - AUGUST 01: John Isner reacts after defeating Denis Kudla during the BB&T Atlanta Open at Atlantic Station on August 1, 2015 in Atlanta, Georgia. (Photo by Kevin C. Cox/Getty Images)
ATLANTA, GA - AUGUST 01: John Isner reacts after defeating Denis Kudla during the BB&T Atlanta Open at Atlantic Station on August 1, 2015 in Atlanta, Georgia. (Photo by Kevin C. Cox/Getty Images)