BERLIN — Frances Tiafoe put Team World ahead at the Laver Cup with a victory over Daniil Medvedev on Saturday. The American, who reached the semifinals at the U.S. Open, won 3-6, 6-4 and 10-5 in the third set, which is a match tiebreaker.

Francisco Cerundolo got Team World off to a winning start at the Laver Cup with a 6-4, 6-4 victory over Team Europe's Casper Ruud on Friday. The Argentinian, who is ranked No. 31, overcame five double faults to earn one point for his team at the indoor hard-court men’s tournament with a format reminiscent of golf’s Ryder Cup.

Stefanos Tsitsipas has pulled Team Europe even with Team World at the Laver Cup by beating Thanasi Kokkinakis 6-1, 6-4 in Berlin. Team World led after Francisco Cerundolo of Argentina topped Casper Ruud of Norway 6-4,