French Open tennis - Alexander Zverev pays tribute to Roman Safiullin - 'He's playing incredible tennis'

French Open tennis - 'I played incredible but the tournament's not over' - Alexander Zverev

After ankle injury, Zverev returns on crutches to address Chatrier before retiring from Roland Garros semifinal

Alex Zverev breaks down in tears and APOLOGISES to Novak Djokovic at Olympics

Novak Djokovic congratulates Alexander Zverev on ATP Finals win, says he had an "incredibly tough year on and off the court"

Djokovic 3-2 Zverev