Carlos Alcaraz secured his first win as world number one on Sunday as he beat South Korea’s Kwon Soon-woo to send Spain into the last eight of the Davis Cup, while Matteo Berrettini helped Italy seal top spot in their group with victory over Sweden.
Alcaraz, who reached the top of the rankings on the back of his triumph at the U.S. Open, survived a tight second set to topple Kwon 6-4 7-6(1) after Roberto Bautista Agut had given Spain the lead by dispatching Hong Seong-chan 6-1 6-3.
“Davis Cup is different. You are playing with your team, represent your country. You don’t play just for yourself. You’re playing for everyone in Spain, you know,” Alcaraz, who converted all three of his break points, told reporters.
“It is a different atmosphere, different air you breathe, totally different from the other tournaments.”
Six-times winners Spain will meet Croatia for a place in the semi-finals.