7 May 2021 11:20am Casper Ruud upset Greek Tsitsipas and earned himself one of the biggest victories of his career on Thursday with 7-6(4), 6-4 to reach the quarter-finals of the Mutua Madrid Open. The Norwegian World No. 22 showed o fear in his play against the fourth-seeded Greek ace, earning the lone break of serve in the second set to triumph after one hour and 34 minutes. “He is one of the best players this year on the Tour, one of the ones who has won the most matches. He’s won his first Masters 1000 in Monte-Carlo. Barcelona he was very close to getting the title there, as well,” Ruud said of the Greek player.