World number one Novak Djokovic and U.S. Open champion Dominic Thiem crashed out of the Vienna Open in the quarter-finals on Friday.
Both top seeds were beaten in straight sets by Lorenzo Sonego and Andrey Rublev respectively.
Djokovic, who had a 39-2 record this year, failed to convert a single break-point in a 6-2 6-1 loss while Sonego broke the Serb five times for the biggest win of his career.
Sonego’s first top-10 victory capped a dream week for the 25-year-old, who lost the final qualifier but entered the main draw as a lucky loser.
“For sure it’s the best victory of my life,” Sonego said in an on-court interview. “I played so, so good today. I like this tournament, I like the conditions here. It’s unbelievable.”