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 the BNP Paribas Open. And No. 4 seed Casper Ruud fell to American Marcos Giron in the other big upset of the day.

The win was just Griekspoor's second in eight matches against Zverev, and the first time Griekspoor has beaten a player ranked in the top 5. For Zverev, he becomes the first No. 1 seed to lose his opening match at the BNP Paribas Open since Andy Murray fell to 2017 to Vasek Pospisil 6-4, 7-6 (5).

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 Friday. The Dutchman collapsed on the court after converting his sixth match point to end an absorbing three hour,