Making an impressive start at the ATP Malaysian Open, Indian teen Yuki Bhambri demolished fellow wild card Yew-ming SI of Malaysia 6-2, 6-0 in the first round in Kuala Lumpur on Monday.
The 24-year-old ended a four-year title drought to claim his second ATP crown. He also beat Acasuso in the Bucharest final in 2002.
Canada's Milos Raonic has withdrawn from the ATP Tour Finals in London due to injury and been replaced by Spain's David Ferrer.
World number two Murray, who smashed a frame in anger in the final game, said the proximity of next week's Davis Cup final on a claycourt in Ghent had not been a factor in his defeat.
World No 5 David Ferrer beat unseeded Ukrainian Alexandr Dolgopolov 6-1 3-6 6-4 to win the Valencia Open for the third time on Sunday, claiming his sixth ATP World Tour title this year.
The world No 1 will meet Paradorn Srichaphan in the last four of the Swiss Indoors tournament.
Rafael Nadal's 30-match winning streak ended on Friday when the world number one was upset 7-6(1), 6-4 by fellow Spaniard David Ferrer in the Monte Carlo Masters quarter-finals.
World number five David Ferrer cruised to a 6-2, 6-3, 7-5 win over Tomas Berdych to put defending champions Spain level with the Czech Republic at 2-2 in the Davis Cup final on Sunday.
World No. 3 David Ferrer has reached the semi-finals of the Valencia Open for the fourth consecutive year with a 6-4, 4-6, 6-0 win over fifth seed Jerzy Janowicz.
Holders Spain clinched reached their fourth Davis Cup final in five years when David Ferrer overcame the big-serving John Isner to help beat the United States 3-1 in the last-four tie on Sunday.
World number one Rafael Nadal will face compatriot David Ferrer at next week's ATP World Tour Finals in London, with last year's champion Novak Djokovic and runner-up Roger Federer drawn in the second group on Saturday.
Gael Monfils and David Ferrer, the top two seeds, were surprisingly beaten in the South African Open semi-finals on Saturday. Monfils lost to Spain's Feliciano Lopez 3-6, 6-1, 7-6 while Ferrer bowed out 7-5, 6-4 to Stephane Robert of France.
World number one Novak Djokovic moved into the semi-finals of the Sony Ericsson Open after holding off a brave second set effort from Spain's David Ferrer to win 6-2, 7-6 on Thursday.
Former world number one Rafa Nadal wasted a match point as he slipped to a surprise semi-final loss to Austrian Dominic Thiem on his beloved clay at the Argentina Open on Saturday.
Spain shrugged off the absence of Rafa Nadal to take a 2-0 lead over hosts the United States in their Davis Cup World Group quarter-final after gutsy wins by Feliciano Lopez and David Ferrer on Friday.
Andy Murray ground down David Ferrer 4-6, 7-6, 6-1, 7-6 on Friday to reach his second consecutive Australian Open final, raising British hopes of ending a 75-year drought for a men's singles grand slam champion.
The World No 1 put on a vintage display to beat the Spaniard in the final of the season-ending event on Sunday. His victory at the showcase eight-man tournament put him level with Ilie Nastase and one behind the record of five titles held by Ivan Lendl and Pete Sampras.
Rafael Nadal left no doubt that he would be the overwhelming favourite at next month's French Open after crushing fellow Spaniard David Ferrer 6-2, 6-3 in the Monte Carlo Masters semi-finals on Saturday.
Former US Open champion Del Potro fired down 11 aces and did not face a break point during the one hour, 33 minutes match.
David Ferrer produced an epic comeback to beat Radek Stepanek and put Spain 2-0 up in the Davis Cup final against Czech Republic on Friday after Rafael Nadal's earlier victory had given the hosts an ideal start. Nadal, relishing a return to clay, brushed aside Tomas Berdych 7-5, 6-0, 6-2 to announce his return to form in the opening rubber of the best-of-five match at the indoor Palau Sant Jordi.
Andy Murray took another step towards securing a berth at next month's World Tour finals when he fought off a typically dogged David Ferrer to win 6-4, 7-5 and move into the final of the Valencia Open on Saturday.
Spain took a 2-0 lead in their Davis Cup semi-final against the United States on Friday after world number one Rafael Nadal survived a spirited attack from rookie Sam Querrey and David Ferrer beat Andy Roddick. Nadal won 6-7, 6-4, 6-3, 6-4 while world number five Ferrer sealed the match 7-6, 2-6, 1-6, 6-4, 8-6.
Photos from the ATP World Tour Finals matches played in London on Monday
Defending champion Roger Federer overcame some dogged resistance by Spain's David Ferrer to reach the final of the ATP World Tour Finals on Saturday, winning 7-5, 6-3 at the O2 Arena.
Roger Federer rallied from a set down to beat Moldovan surprise package Radu Albot 4-6, 7-5, 6-3 in a stuttering start to the 20-times Grand Slam champion's Miami Open campaign on Saturday.
Maria Sharapova led a trio of Russians into the last 16 of the French Open on Saturday while a relieved fifth seed David Ferrer was given an unnerving reminder of just how effective Lleyton Hewitt's grit can be.
Novak Djokovic beat defending champion David Ferrer of Spain 7-5, 7-5 to win the Paris Masters on Sunday and keep alive his hopes of reclaiming the world number one spot by the end of the year.
Rafael Nadal blasted past Serb Novak Djokovic 6-4, 6-4 to improve his record to 2-1 at the Masters Cup.
Spain's Rafael Nadal charged back from a set down to beat Frenchman Richard Gasquet 3-6 6-3 6-4 in the opening match of the Tennis Masters Cup, while David Ferrer made it a perfect day for Spain with an impressive 6-4 6-4 victory over Serbia's Novak Djokovic in the second Gold Group match.
Andy Murray's latest bid for a maiden clay title ended when he fell to Tomas Berdych in the Madrid Open quarter-finals on Friday, leaving Rafa Nadal as the only member of the 'big four' still alive at the Masters event.
Bernard Tomic and Lleyton Hewitt gave local fans some excitement before the Australian Open with victories in warm-up tournaments on Saturday while David Ferrer entered the record books.
Andy Murray rallied from a set and a break down against Gilles Simon to advance to his first semi-final since he won last year's Wimbledon title while top seed David Ferrer retired with a thigh strain at the Acapulco International on Thursday.
A round-up of the players who impressed the most on the ATP Tour in 2012.
Britain's Andy Murray fought back for a 6-7, 6-1, 6-2 win over France's Richard Gasquet to reach the final of the Sony Open where he will face Spaniard David Ferrer on Sunday.
Novak Djokovic completed a weather-interrupted 2-6, 6-1, 6-4, 6-2 victory over fourth-seeded Spaniard David Ferrer on Sunday to return to the men's final at Flushing Meadows in his pursuit of a repeat US Open title.
Top seed Amelie Mauresmo reached the semi-finals of the Nasdaq-100 Open after a 6-1, 6-4 win over tennager Ana Ivanovic on Wednesday.
World number one Rafael Nadal beat Russian third seed Nikolay Davydenko 6-3, 6-2 in the semi-finals of the Barcelona Open on Saturday to stay on course for a fifth successive title at the Catalan event. In a repeat of last year's final, the Spanish top seed will play compatriot David Ferrer on Sunday after the fourth seed came back from a set down to defeat fifth-seeded Chilean Fernando Gonzalez 2-6, 6-2, 7-6.
Novak Djokovic defeated fourth-seeded Spaniard David Ferrer 7-5 6-3 on Saturday to win the Dubai Championships.
Spain's David Ferrer stunned World No. 1 Novak Djokovic to reach the ATP World Tour semi-finals on Wednesday, outplaying the Serb 6-3, 6-1 at the O2 Arena.
The ambitious Champions Tennis League (CTL) suffered a major setback when World No.10 David Ferrer pulled out of the event on Monday, citing 'health issues'.