Chilean Cristian Garin's aggressive play overwhelmed Casper Ruud at Indian Wells on Sunday as the qualifier upset the third seed 6-4 7-6(2) to book a spot in the last 16.
Garin pounded 27 forehand winners and fought off a second set comeback attempt to dispatch the struggling Norwegian, who has yet to win consecutive matches this season.
"I'm so happy with the way that I played," said Garin. "I played so aggressive the whole match, even in the second set when I was leading 3-1 and lost those games."