Alexander Zverev's season is taking a very negative direction after his defeat to Jannik Sinner in the Australian Open final.

Tallon Griekspoor stunned top-seeded Alexander Zverev 4-6, 7-6 (7/5), 7-6 (7/4) in the second round at Indian Wells on Friday ...

Tallon Griekspoor stunned top-seeded Alexander Zverev, 4-6, 7-6 (7/5), 7-6 (7/4), in the second round at Indian Wells on ...

Tallon Griekspoor stunned top seed Alexander Zverev 4-6, 7-6 (5), 7-6 (4) in a 3-hour, 7-minute second-round clash Friday at ...

Tallon Griekspoor upset top seed Alexander Zverev 4-6 7-6(5) 7-6(4) in a marathon second round clash at Indian Wells on ...

Tallon Griekspoor stunned top-seeded Alexander Zverev 4-6, 7-6 (7/5), 7-6 (7/4) in the second round at Indian Wells on Friday ...

Tallon Griekspoor upset No. 1 seed Alexander Zverev 4-6, 7-6 (5), 7-6 (4) in a second-round match at the BNP Paribas Open on ...

Tallon Griekspoor stunned top-seeded Alexander Zverev 4-6, 7-6 (7/5), 7-6 (7/4) in the second round at Indian Wells on Friday ...

Tallon Griekspoor stunned top-seeded Alexander Zverev 4-6, 7-6 (7/5), 7-6 (7/4) in the second round at Indian Wells on Friday ...

Tallon Griekspoor delivered the biggest victory of his career by recording a 4-6, 7-6 (5), 7-6 (4) win over top-seeded ...

The Dutchman had lost his last five matches to Zverev, and scored his first win over a Top 5 player in 19 tries.