Koji Watanabe/Getty Images

Wozniacki downs Osaka to win Pan Pacific Open

Caroline Wozniacki took control in the second set and overpowered Japanese teenager Naomi Osaka 7-5, 6-3 to win the Pan Pacific Open on Sunday.

Mike Stobe/Getty Images for USTA
2dMatt Wilansky

Serena (shoulder) pulls out of 2 upcoming events

Serena Williams has pulled out of the Wuhan Open and China Open, the two biggest events left on the WTA schedule before the WTA Finals in late October.

Julian Finney/Getty Images

Niculescu advances to final of Korea Open

Fifth-seeded Monica Niculescu of Romania defeated Zhang Shuai of China 6-0, 6-4 on Saturday to advance to the final of the Korea Open. She will face Lara Arruabarrena of Spain in Sunday's final.

Mike Hewitt/Getty Images
3dPeter Bodo

Your guide to the fall tennis season

True, there are no Grand Slam events at stake, but don't be fooled. There is a lot on the line (how about getting back that No. 1 ranking, Serena?) as the tennis season winds down.

Murray ready to take No. 1 spot (0:47)
Alex Goodlett/Getty Images

Lepchenko cleared after meldonium positives

Varvara Lepchenko tested positive four times for meldonium, according to the ITF, which cleared her because it was determined she took the substance before its ban went into effect on Jan. 1.

Toshifumi Kitamura/AFP/Getty Images

McHale rallies to claim first WTA singles title

Christina McHale of the United States rallied to beat Katerina Siniakova of the Czech Republic 3-6, 6-4, 6-4 on Sunday to win the Japan Open and claim her first WTA singles title.

Dennis Grombkowski/Getty Images

Dodin wins Quebec City for 1st WTA Tour title

French teenager Oceane Dodin captured her first WTA Tour tournament with a 6-4, 6-3 win over Lauren Davis in the final of the Coupe Banque Nationale.

Jerry Lai/USA TODAY Sports

Kvitova, Sock confirmed to play Hopman Cup

Czechs Petra Kvitova and Adam Pavlasek and Americans Jack Sock and Coco Vandeweghe are the latest players confirmed to compete at the Hopman Cup in January.

8dSusan Ninan in New Delhi

Mystery surrounds Nadal pullout

Conchita Martinez and Feliciano Lopez gave conflicting versions for Nadal's absence from the first singles rubber.

FP/Getty Images

Hackers reveal WADA data for Biles, Williamses

WADA said a "Russian cyber espionage group" hacked its database and posted confidential medical data about Simone Biles, Serena and Venus Williams and Elena Delle Donne.

Nadal: 'Sport should be clean and look clean' (3:33)
Wawrinka talks beating 'good friend' Djokovic (1:50)
Kerber reflects on long road to US Open crown (1:29)
Landon Nordeman for ESPN
9dPhotography by Landon Nordeman for ESPN

See the US Open through these exclusive, first-ever iPhone 7 photos

With a new two-camera system, the camera on the iPhone 7 Plus is billed as being the most advanced in the world of cellphones. We put it to the test at the US Open, exploring the event in a whole new way.

Wawrinka's emotional championship speech (2:30)
Kerber fulfills dream of becoming No. 1 (1:04)
Kerber holds off Pliskova for US Open crown (1:17)
What Pliskova's future can be (1:51)
Kerber is built for tennis (2:37)
Alex Goodlett, Getty Images
15dJohnette Howard

Djokovic will need guts, wits to hold off Wawrinka

Novak Djokovic has reason to feel good about his chances to win the US Open, but if he buckles mentally Sunday, make no mistake that Stan Wawrinka will capitalize on it.

US Open's event-filled draw leads to a new top-ranked woman (1:02)
Wawrinka rips cross-court winner (0:39)