Two-time Grand Slam champion Naomi Osaka has reacted to Christopher Eubanks' victory over world number five Stefanos Tsitsipas in the ongoing Wimbledon. "Lol, you were shanking so much at the end, I was scared. Quarter-finals next [though]," Osaka wrote on Instagram Stories for Eubanks. This is the first time Eubanks has reached the quarter-finals of a Grand Slam.