Comeback king Marcos Baghdatis recorded his first career win over Roger Federer to eliminate the world number one at Indian Wells.
The popular Cypriot fought back from a set down to stun the Swiss master 5-7, 7-5, 7-6 (7-4) - his first victory over the 16-time Grand Slam champion in seven attempts.
"Seven is my lucky number," Baghdatis said after saving three match points and battling to victory in two hours and 22 minutes.
"I said to myself that the chance would come, and when it comes, I'll take it. That's what I did," said Baghdatis, who next plays Spain's Tommy Robredo.
Federer, who was playing his first tournament since his Australian Open triumph, said: "It was one of those matches where you play well most of the time, and don't play well when you really have to.
"
It's always a very fine line.
That's not why I don't like to now beat myself up too much after a loss like this."