Serena Williams was recovering at her Los Angeles home after undergoing emergency treatment for a blood clot in one of her lungs, the former world number one confirmed on Wednesday.
German veteran Tommy Haas provided a reminder of his claycourt skills to beat Stanislas Wawrinka on Thursday and reach the quarter-finals of the Rome Masters where Rafael Nadal and Andy Murray will resume their rivalry.
Defending champion Serena Williams was knocked out by Jelena Jankovic in the quarter-finals of the Australian Open.
Champion Serena Williams has withdrawn from January's Australian Open as she struggles to recover from a foot injury, which has sidelined her since July, organisers said on Thursday.
Serena Williams said on Thursday she is treating the upcoming US Open just like any other, even though she is well aware of the historical impact the year's final Grand Slam may have.
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.
The International Tennis Federation (ITF) launched an investigation into Romanian Fed Cup captain Ilie Nastase after allegations the former world number one had made a derogatory comment about Serena Williams' unborn child.
The former world number one struggled to a 7-5, 6-3 victory over Spain's Maria Sanchez-Lorenzo in the second round of the Rome Masters.
Serena Williams is a five-times Wimbledon champion but the American has surprisingly declared that she has "never really liked grass".
Serena Williams showed tennis was not just the domain of teenagers as she climbed back to the top of the world rankings on Friday, becoming the oldest female to hold the coveted position at the age of 31.
As Serena Williams sits out a fourth straight Grand Slam, Simona Halep and Karolina Pliskova will join Caroline Wozniacki in a quest for a major breakthrough in Australia.
Williams has not played competitively for nearly eight months after undergoing a knee operation but had hoped to make her comeback at the $600,000 event in Doha.
Serena Williams trounced Maria Kirilenko at the Australian Open on Monday, setting up an all-American quarter-final with her would-be successor Sloane Stephens after Andy Murray had put flagging Frenchman Gilles Simon out of his misery.
Top-ranked Roger Federer continued his dynamic US Open form in near-tropical conditions on Saturday while fourth seed Serena Williams braved the steaming heat to avenge a shock defeat she suffered in January.
Serena Williams beat France's Mathilde Johansson 6-2, 7-5 while Andy Murray disposed clay-specialist Jose Acasuso 6-4, 6-0, 6-4.
Tennis stars Maria Sharapova and Serena Williams confessed that they got distracted by some X-rated girl talk during the draw ceremony for the WTA Championship in Istanbul.
Dinara Safina won a great scrap with fifth seed Serena Williams 2-6, 6-1, 7-6 to reach the German Open semi-finals.
Wimbledon champions Roger Federer and Serena Williams were on course for further success at the All-England Club after booking their places in the Olympic singles semi-finals on Thursday.
Serena Williams applied some coaching tips from older sister Venus in her 6-3 6-2 thumping of sixth-seeded Dinara Safina on Friday that put the American into the finals of the US Open.
Paths to the final in the women's singles at the U.S. Open (prefix denotes seedings)
Images from Day 8 of the Australian Open in Melbourne on Monday.
Images from matches played on Day 4 at the US Open at the Flushing Meadows in New York on Thursday.
Serena Williams has already achieved her stated goal of winning a second French Open title this year but the top-ranked American is still not satisfied with her season despite having more fun than ever on tour.
Local favourite Patty Schnyder eased into the second round of the Zurich Open on Tuesday after sixth seed Serena Williams retired injured at 6-0, 3-0 down.
Serena Williams, winner of eight Grand Slam tennis titles, says she has been inspired by her fellow American, boxing great Muhammad Ali.
Justine Henin is likely to be favourite to win the Australian Open but Serena said she believes she could retain the trophy.
The World No 1 tennis star has revealed that she desperately wants to settle down in life and have a family of her own.
World number one Serena Williams brushed past a weary Conchita Martinez 6-2, 6-2 on Thursday to reach the quarter-finals of the $1.3 million Family Circle Cup
Roger Federer and Serena Williams had contrasting 2013 seasons but both kick off their new campaigns at the Brisbane International this week showing no signs just yet of calling time on their illustrious careers.
Serena Williams has still not kicked post Wimbledon jet lag, but she still managed to beat Chanelle Scheepers 6-4, 6-0 in the quarter-finals of the Stanford Classic on Friday.
Fatigue and a busy schedule was not going to get in the way of Serena Williams returning to the place she says launched her comeback and gave her the confidence to believe she could win another Grand Slam.
Serena Williams started her quest to join Chris Evert and Martina Navratilova in joint fourth place on the career Grand Slam list with a 6-3, 6-1 victory over 18-year-old fellow American Taylor Townsend at the US Open on Tuesday.
Also making it to the last eight were Svetlana Kuznetsova and Czech teenager Nicole Vaidisova.
World number one Serena Williams saved three set points on her way to edging Russian Maria Kirilenko 7-5, 7-5 on Thursday to advance to the quarter-finals of the China Open with her 70th win of the season.