GENEVA — After Roger Federer secured a must-win victory for Team Europe, Alexander Zverev ensured the Laver Cup was retained in a title-deciding super-tiebreaker against Milos Raonic of Team World.

Zverev fired a cross-court forehand winner to clinch a 6-4, 3-6, 10-4 victory in the decisive singles match and give the Europeans a 13-11 win in points.

After Zverev fell to the ground in triumph, he disappeared from view under a pile of celebrating teammates including Federer, Rafael Nadal and their captain Bjorn Borg.

Two hours earlier, Federer had delighted a sold-out crowd of 17,000 in his home country by beating John Isner 6-4, 7-6 (3) to set up the winner-take-all finale.

Europe began Sunday leading 7-5 in a scoring system that gave one point for a win on Friday and two on Saturday. Victories in the doubles and each of three singles matches scored three points on Sunday.

Nadal scratched from Europe's intended lineup in both the opening doubles with Federer and the first singles due to an inflamed hand.

Isner and doubles specialist Jack Sock then beat Federer and Stefanos Tsitsipas 5-7, 6-4, 10-8.

Nadal's replacement in singles, No. 5 ranked Dominic Thiem, was beaten 7-5, 6-7 (3), 10-5 by Taylor Fritz in a second straight match decided by the super-tiebreaker.

Fritz was a late replacement for Nick Kyrgios, who like Nadal scratched after both had played in singles and doubles on Saturday.

The European team also won the first two Laver Cup editions, played in 2017 in Prague and last year in Chicago.

ATP: Medvedev beats Coric to win St. Petersburg Open

ST. PETERSBURG, Russia — Daniil Medvedev continued his storming run of form by beating Borna Coric 6-3, 6-1.

On a run of playing in five consecutive finals including his U.S. Open defeat to Rafael Nadal, the Russian never faced a break point against Coric — even though the Croatian had won all four of their previous meetings on hard courts.

The fourth-ranked Medvedev moves to 6-6 in career finals, while Coric is now 2-4 after his first final in 11 months.

Since the start of last month, Medvedev has won in Cincinnati and St. Petersburg. Besides the U.S. Open, he lost finals in Montreal and Washington, D.C.

ATP St. Petersburg 

Sunday

At Sibur Arena

St. Petersburg, Russia

Purse: $1,180,000

Surface: Hardcourt indoor

Men's Singles

Final

Daniil Medvedev (1), Russia, def. Borna Coric (4), Croatia, 6-3, 6-1.

Men's Doubles

Final

Igor Zelenay, Slovakia, and Divij Sharan, India, def. Simone Bolelli and Matteo Berrettini, Italy, 6-3, 3-6, 10-8.

ATP Moselle Open 

Sunday

At Arenes de Metz

Metz, France

Purse: €524,340

Surface: Hardcourt indoor

Men's Singles

Final

Jo-Wilfried Tsonga, France, def. Aljaz Bedene, Slovenia, 6-7 (4), 7-6 (4), 6-3.

Men's Doubles

Final

Robert Lindstedt, Sweden, and Jan-Lennard Struff, Germany, def. Nicolas Mahut and Edouard Roger-Vasselin (1), France, 2-6, 7-6 (1), 10-4.

WTA: Osaka wins Toray Pan Pacific, her 1st title on Japan soil

Naomi Osaka won her first singles title since the Australian Open in January by beating Russia's Anastasia Pavlyuchenkova 6-2, 6-3 in the Toray Pan Pacific final on Sunday.

Enjoying strong support from a parochial crowd, the former No. 1-ranked Osaka dominated the match with her powerful groundstrokes and broke Pavlyuchenkova's serve twice to take the opening set in 31 minutes.

Top-seeded Osaka didn't ease off in the second set, denying the Russian any chance of getting a foothold in the match and closed out with an ace.

It is Osaka's first title in the country of her birth — she lost finals in Tokyo in 2016 and '18 — and fourth in her career. She won back-to-back majors at the U.S. Open in 2018 and the Australian Open in January.

At the Korea Open in Seoul, Karolina Muchova of the Czech Republic defeated fourth-seeded Magda Linette of Poland in the final.

The No. 3-seeded Muchova coasted to the title, overcoming her opponent 6-1, 6-1.

WTA Toray Pan Pacific Open

Sunday

At ITC Tsuyoshi Tennis Center

Osaka, Japan

Purse: $823,000 (Premier)

Surface: Hard-Indoor

Singles

Championship

Naomi Osaka (1), Japan, def. Anastasia Pavlyuchenkova, Russia, 6-2, 6-3.

WTA Korea Open

Sunday

At Seoul Olympic Park Tennis Center

Seoul, Korea

Purse: $250,000

Surface: Hardcourt outdoor

Women's Singles

Final

Karolina Muchova (3), Czech Republic, def. Magda Linette (4), Poland, 6-1, 6-1.

Women's Doubles

Final

Tatjana Maria, Germany, and Lara Arruabarrena, Spain, def. Hayley Carter, United States, and Luisa Stefani, Brazil, 7-6 (7), 3-6, 10-7.

WTA Wuhan Open

Sunday

At Optics Valley International Tennis Center

Wuhan, China

Purse: $2,828,000

Surface: Hardcourt outdoor

Women's Singles

Round Of 64

Dayana Yastremska, Ukraine, def. Ajla Tomljanovic, Australia, 7-6 (5), 6-2.

Danielle Collins, United States, def. Venus Williams, United States, 7-5, 7-6 (5).

Aryna Sabalenka (9), Belarus, def. Aliaksandra Sasnovich, Belarus, 6-1, 6-2.

Bernarda Pera, United States, def. Jennifer Brady, United States, 6-4, 3-6, 6-4.

Caroline Garcia, France, def. Daria Kasatkina, Russia, 6-2, 6-2.

Elena Rybakina, Kazakhstan, def. Zhu Lin, China, 7-5, 2-6, 6-0.

Sloane Stephens (10), United States, def. Zhang Shuai, China, 7-5, 6-4.

Barbora Strycova, Czech Republic, def. Xiyu Wang, China, 6-4, 6-2.

Women's Doubles

Round Of 32

Raluca-Ioana Olaru and Simona Halep, Romania, def. Qianhui Tang and Xinyu Wang, China, 7-6 (3), 4-6, 10-8.