Yahoo Sports reports: Brazilian youngster João Fonseca was defeated by Germany's Yannick Hanfmann at the grass-court Halle Open on Tuesday, with newly crowned French Open champion Alexander Zverev also in appearance. The 19-year-old Fonseca, who beat Novak Djokovic in a five-set thriller at Roland Garros last month, fell in straight sets 6-2, 6-2 to world number 59 Hanfmann, celebrating his 100th victory on the ATP Tour.