Top seed Zverev upended by Muller in Hamburg
Alexandre Muller edged out Alexander Zverev 6-3, 4-6, 7-6 (5) on Wednesday afternoon and will play the winner of the match between Frenchman Giovanni Mpetshi Perricard and Canadian Felix Auger-Aliassime, the No 6 seed, in the next round

Top seed Alexander Zverev squandered a 5-3 lead in the final-set tiebreak as he crashed out of the Hamburg Open, beaten 6-3, 4-6, 7-6 (5) by Frenchman Alexandre Muller in the second round.
Muller, ranked No 40, will play the winner of the match between Frenchman Giovanni Mpetshi Perricard and Canadian Felix Auger-Aliassime, the No 6 seed, next.
In the previous round of the Hamburg tournament, the Frenchman defeated Swede qualifier Elias Ymer (6-3, 7-5).
Zverev, ranked No 3, won against American qualifier Aleksandar Kovacevic (6-1, 7-6 (5)) during the first round of the Hamburg tournament.
Hamburg ATP 500, other second-round results (Tennis Stadion, clay, EUR 2.158.560, most recent results first):
- Giovanni Mpetshi Perricard vs. Felix Auger-Aliassime
- Luciano Darderi vs. Brandon Nakashima: wednesday
- Flavio Cobolli beat Alejandro Davidovich Fokina (5): 6-4, 7-5
- Andrey Rublev (3) beat Justin Engel (WC): 6-3, 7-5
- Tomas Martin Etcheverry beat Camilo Ugo Carabelli: 6-4, 6-4
- Roberto Bautista Agut beat Frances Tiafoe (2): 6-2, 6-3
- Jiri Lehecka beat Francisco Cerundolo (4): 7-5, 6-2