Rafael Nadal guaranteed he would top the world rankings with a 7-6, 6-1 victory over Ecuador's Nicolas Lapentti in the quarter-finals of the Cincinnati Masters.
Mahesh Bhupathi and Mark Knowles beat American wild card duo of Mardy Fish and John Isner 7-5, 6-7(5), 12-10 in the quartfinals.
The world's top four players will face off at the Cincinnati Masters on Saturday as Roger Federer, Andy Murray, Rafa Nadal and Novak Djokovic go head-to-head in two mouth watering semi-finals.
The Indo-Czech duo advanced after fifth seeds Paul Hanley and Kevin Ullyet withdrew while trailing 3-5 in the first set.
Chronic back pains forced the American crowd-favourite to withdraw from the next week's Cincinnati Masters, tournament officials said on Saturday.
Sania advanced to the second round with a 6-3 6-3 win over Spaniard Anabel Medina Garrigues.
Roger Federer raced to a 6-1, 6-4 victory over American James Blake to win the Cincinnati Masters.
Spaniard Nicolas Almagro took the world No 1 to three sets at the Cincinnati Masters.
Mahesh Bhupathi and Jamie Murray fell to top seeds Mike and Bob Bryan in the second round.
Roger Federer survived a scratchy performance to beat Marcos Baghdatis 7-6, 7-5 to reach the quarter-finals.
World number 19 Moya battled past Argentine Juan Martin Del Potro 7-5 3-6 7-5 in their third-round match, while Hewitt, ranked 20, eased to a 6-3 6-3 win over Austrian Juergen Melzer.
The Indo-Scottish duo beat Juan Monaco and Todd Perry 7-6(1), 6-7(5), 10-3.
Rafael Nadal was forced to retire with cramps while Carlos Moya defeated Novak Djokovic.
David Ferrer outclassed his Spanish compatriot Nicolas Almagro in the Swedish Open final on Sunday, winning 6-1 6-2 to clinch his fourth career title.
Mahesh Bhupathi and his partner Mark Knowles of The Bahamas squandered a match point en route to an agonising three-set loss to top seeds Bob and Mike Bryan in the semi-finals of the ATP Cincinnati Masters. The fourth seeded Indo-Bahamian pair went down 4-6, 7-6 (7), 10-8 to the American brothers, who booked their third successive final berth in the US $ 2,615,000 event.
Roger Federer's reign as world number one could end this week after he was beaten 7-6, 4-6, 7-6 by Croatian Ivo Karlovic in the third round of the Cincinnati Masters.
Roger Federer came close to suffering three successive losses for the first time in five years before scrambling to a 6-7, 7-6, 6-0 win over Robbie Ginepri at the Cincinnati Masters Series on Tuesday. Federer was staring defeat in the face when he lost his serve to go 5-6 down in the second set, but Ginepri, an American ranked down at 64 in the world, did not quite have what it took to close the match out.
French Open champion Barty exited the tournament in the last 16 but regained the number one spot after last year's champion Naomi Osaka was also knocked out at the same stage.
It was Roger Federer's fastest defeat since losing to Franco Squillari in 54 minutes in Sydney in 2003.
Andy Roddick and Juan Carlos Ferrero will contest the Cincinnati Masters final on Sunday.
The seventh seeds beat Mark Knowles and Daniel Nestor to advance to the last four of the Cincinnati Masters.
Ferrero will meet fellow-Spaniard Tommy Robredo, who upset third seed Ivan Ljubicic of Croatia 7-6, 6-2 to reach the semi-finals of the Cincinnati Masters.
Rafael Nadal battled past German Tommy Haas 7-6, 6-3 to reach the Cincinnati Masters quarter-finals.
The world No. 1 was twice made to come from behind for his 55th consecutive win on North American hardcourts, in the Cincinnati Masters.
The fifth seed became the first major casualty at the Cincinnati Masters, losing in the opening round.
The Indo-Czech duo lost 3-6, 6-0, 10-7 to top seeds Mike and Bob Bryan in the Cincinnati Masters semi-final.
The world number one battled back from a break down in the final set to fend off the Aussie and reach the final of the Cincinnati Masters.
Hewitt was in commanding form as he beat Carlos Moya 6-2, 6-4 to reach the semi-finals of the Cincinnati Masters, setting up a clash with top seed Roger Federer.
Former world number one Marat Safin was dumped out in the first round of the Cincinnati Masters on Monday, beaten 6-3 7-6 by German Nicolas Kiefer.
The top seed edged a 7-6, 7-5 victory over American James Blake in the first round of the Cincinnati Masters.\n
Victoria Azarenka displayed the kind of form that could lead her to a hat-trick of Australian Open titles later this month by brushing aside German fourth seed Angelique Kerber 6-3, 6-1 in the Brisbane International final on Saturday.
The world No. 1 suffered his first defeat before a final for 14 months in the second round of the Cincinnati Masters.
Earning a dream Grand Slam debut for himself, Indian tennis player Sumit Nagal set up a US Open first round clash against the legendary Roger Federer, one of the greatest players of all-time, on Monday.