Venus Williams showed that, almost a year after her health scare, she has the stamina needed as she battled for two hours 23 minutes to beat Russia's Maria Kirilenko 6-3, 6-7, 6-2 at the Cincinnati Open on Tuesday.
The tournament will see the Williams sisters appearing together for the first time outside the Grand Slams.
IMAGES from the matches played at the Miami Open on Thursday
The former champion has withdrawn from the U.S. Open with a lingering stomach muscle injury.
Second seed Venus Williams tumbled out of the Family Circle Cup on Thursday, succumbing 6-4 7-6 to big-serving German Sabine Lisicki in the third round. The American, who had to battle the previous day before beating Indian Sania Mirza in three sets, lost the match in 87 minutes after the 16th-seeded German took the tiebreak 7-5.
Second seed Venus Williams needed three sets to beat battling Indian Sania Mirza 6-1 3-6 6-2 in the second round of the Family Circle Cup on Wednesday. After dominating the opening set, American Williams found herself in trouble in the second with the 100th-ranked Indian producing some great defence to save 10 out of 11 break points while breaking the American twice. Williams finally took control of the match in the third set.
Sania Mirza set up a second round clash with multiple Grand Slam winner and second seed Venus Williams after edging past Sesil Karatantcheva 6-4, 6-4 in the first round of the US $1 million WTA Family Circle Cup in Charleston.
Images from the third day at the US Open, the final Grand Slam tournament of the year, in New York, on Wednesday:
The twice Wimbledon champion scored an easy victory over Katarina Srebotnik
Venus Williams avoided another early exit with a routine win over fellow American Alison Riske at the Volvo Car Open in South Carolina while Swiss second seed Belinda Bencic was ousted by Russian qualifier Elena Vesnina.
The French top seed beat the American 4-6, 7-5, 6-4 in the final of the Antwerp Diamond Games.
Ana Ivanovic claimed her first WTA Tour title in more than two years with a 6-2, 5-7, 6-4 victory over fellow former world number one Venus Williams to clinch the Auckland Classic on Saturday and boost her confidence ahead of the Australian Open.
Maria Sharapova defeated French qualifier Stephanie Foretz 6-1, 6-4 while Venus Williams survived British wildcard Naomi Cavaday.
Roger Federer was lucky to keep alive his dream of winning a maiden Roland Garros crown and Venus Williams used a good night's sleep to spare herself from a French Open nightmare in the second round on Thursday.
Serena Williams remains on course for a record sixth win at the Sony Ericsson Open after beating sister Venus 6-4, 3-6, 6-3 to set up a final meeting with 19-year-old Belarusian Victoria Azarenka. Azarenka defeated Russian Svetlana Kuznetsova 6-3, 2-6, 7-5 in Thursday's other semi-final to book her place in a top tier final for the first time.
Tennis stars Venus Williams and Tomas Berdych have posed naked for ESPN The Magazine's Body Issue.
Images from Day 1 of the Wimbledon Championships.
Images from all the action on Day 9 of the Australian Open at Melbourne Park on Tuesday
Spain's Carla Suarez Navarro came back from a dreadful first set to defeat Venus Williams.
The three-time former champion entered her sixth Wimbledon final, beating Serbian teenager Ana Ivanovic.
The Williams sisters will in the United States' Fed Cup match against Belgium in April.
Top seed Serena Williams came from a set down to book her place in the Stanford Classic semi-finals with a hard-earned 2-6, 6-3, 7-5 win against fifth-seeded Serb Ana Ivanovic on Friday.
Venus Williams beat Jill Craybas 6-3, 6-1 to book her spot in the Japan Open second round.
Top seed Venus Williams beat Flavia Pennetta while the Russian accounted for Eleni Daniilidou of Greece in Saturday's semi-finals.
Venus Williams battled past fellow American Laura Granville 7-6, 6-4 to reach the Memphis International semi-finals
As she did two years ago when she came in at number 14, the imposing American made a mockery of a low seeding.
Venus Williams will make her Hopman Cup debut in Perth later this year, partnering John Isner to represent the United States in the mixed international tournament, organisers said on Wednesday.
Less than a month after her run to the Wimbledon final, where she lost to Spain's Garbine Muguruza, 37-year-old Williams again had to turn back time against a young challenger.
A round-up of the fourth day's play at the French Open.
After the historic success of its Chandrayaan-3 lunar mission, Indian Space Research Organisation (ISRO) is going full throttle with its plans to send Indian astronauts for the first time to the Moon by 2040, ISRO Chairman S Somanath said.
Images from cation on day nine of the US Open being played at the Flushing Meadows.
12 Dresses, One For Every Sign In The Zodiac Whether you're governed by fire or water, there's a dress to match your cosmic personality
The seventh-seeded American next plays top seed Shahar Peer of Israel at the Memphis International.
The former world number one beat Japan's Akiko Morigami 6-1, 2-6, 6-4 in the first round of the Memphis International.
Five-times champion and second seed Venus Williams was stunned 6-2, 6-3 by Bulgaria's Tsvetana Pironkova in the quarter-finals of Wimbledon on Tuesday.