Alexander claimed the opener and led 4-1 in the final set. Instead of toppling the lower-ranked opponent, Alexander dropped the final five games and propelled his rival toward his first top-10 victory. Zverev did not feel well in Acapulco, and it reflected on his campaign.

That’s Zverev right now, who lost to Tallon Griekspoor of the Netherlands, 4-6, 7-6 (5), 7-6 (4) in his first match at Indian Wells — as the top seed no less — on Friday.

The second seed German, Alexander Zverev was knocked out from the second round of the Indian Wells on Friday after a hard fought match against the Dutch, Tallon Griekspoor.

World number two Alexander Zverev, riding high after a runner-up finish to Jannik Sinner at the Australian Open, aims to turn things around at Indian Wells after three tough tournaments in February.

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.

World number two Alexander Zverev, beaten by Tallon Griekspoor in his Indian Wells opener, said "terrible" play has pushed thoughts of supplanting Jannik Sinner atop the rankings out of his mind.

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,

ATP World No. 2 admitted to playing "terrible" after losing to Tallon Griekspoor in his first match at Indian Wells.