Joao Fonseca became the second youngest champion of the NextGen ATP tournament on Sunday when he defied his lowly ranking of 145 to defeat Learner Tien in the final. Brazil's Fonseca, 18, came through ...
Learner Tien defeated close friend Alex Michelsen to reach the NextGen ATP Finals title match on Saturday but admitted he "hated" having had to face his American compatriot.