Ivo Karlovic set a US Open record on Tuesday when he banged down 61 aces on his way to a first round victory over Taiwan's Lu Yen-Hsun.
Croat Ivo Karlovic beat Marat Safin 6-3, 6-4 in the first round of the Madrid Masters.
Towering Croat Ivo Karlovic toppled third seed Novak Djokovic 7-6, 7-6 to make the quarter-finals of the Madrid Masters on Thursday. Earlier, world number one Rafael Nadal, Roger Federer and Andy Murray all made it to the last eight, but defending champion David Nalbandian went out.
World number one Rafa Nadal withstood a barrage of power serving by Croat Ivo Karlovic to reach the semi-finals of the Indian Wells ATP tournament with a thrilling 5-7, 6-1, 7-6 victory on Thursday.
John Isner and Ivo Karlovic became the tallest doubles partnership when they played their first round match at the Australian Open.
Defending champion Andy Murray blew out the cobwebs with a 7-6, 6-4 win over towering Croat Ivo Karlovic on Tuesday in his first match since winning last month's U.S. Open.
Fifth seed Andy Murray, sixth-seeded David Ferrer and defending champion Ivan Ljubicic all fell by the wayside on a day of startling upsets at the Indian Wells ATP tournament on Saturday.
Spain's veteran Carlos Moya, who was stunned by Somdev Devvarman in the Chennai Open on Thursday, says India's rising star is armed with a strong game and predicted that he will soon break into the top 100. Somdev defeated the two-time champion in the second round to set up a quarter-final clash against big serving Croat Ivo Karlovic.
Frenchman Fabrice Santoro crushed Novak Djokovic 6-3, 6-2 in the second round of the Paris Masters.
World number one Roger Federer and Andy Roddick also advanced into the third round.
The Indo-Czech duo beat Chris Haggard and Ivo Karlovic 6-7 (3), 6-3, 10-8 in the quarterfinals.
Lleyton Hewitt breezed into the last four of the Tennis Channel Open with a 6-2, 6-0 win over Philip Kohlschrieber
Ivo Karlovic ousted sixth seeded German Benjamin Becker 7-5 7-6 in the first round of the U.S. Clay Court Championships on Monday.
World number one Roger Federer had to play three sets to reach the Qatar Open semi-finals on Thursday, while number two Rafael Nadal had an easier ride when his opponent retired injured to put him in the last four. Swiss Federer survived a scare from 21-year-old Latvian Ernests Gulbis before winning 6-2, 4-6, 6-4 to progress to the next round where he will face Russian third seed Nikolay Davydenko who beat big-serving Croat Ivo Karlovic 7-6, 7-6.
Roger Federer felled big-serving Croat Ivo Karlovic 7-6, 6-3 on Monday to reach the fourth round of the ATP event in Indian Wells. The Swiss world number two, aiming to win the title for the fourth time, snatched the first set on a tiebreak and broke once in the second to clinch victory.
Five-times champion Roger Federer took the sting out of Croatian Ivo Karlovic's venomous serve to book his place in a 21st straight Grand Slam semi-final at Wimbledon.
Croatia's Ivo Karlovic called Wimbledon's credibility into question and accused line judges of bias after he was foot-faulted "11 times" in his second-round defeat by Andy Murray on Thursday.
Ivo Karlovic utilised a single break of service to upset world number 10 Tommy Haas 7-6 6-4 in the quarter-finals of the US Men's Clay Court Championships on Friday.
The victory avenged the Croat's quarter-final defeat at the hands of Clement at Queen's last week.
India's challenge in the doubles at the Chennai Open ended as Vishal Uppal and Ashutosh Singh lost to Tomas Behrend and Robin Vik.
Prakash Amritraj began his campaign at the Hall of Fame Tennis Championships with an easy straight sets win over Flavio Cipolla, in Newport.
World number two Roger Federer edged past Ivo Karlovic 7-6(3), 7-6(4) on Saturday to reach the Halle Open final and stay on course for his eighth title in the grasscourt Wimbledon warmup event.
World number one Roger Federer beat Croatia's Ivo Karlovic 7-6, 6-3 in the Rome Masters on Thursday to book a quarter-final against Czech Radek Stepanek.
Ivo Karlovic has a winning serve but his lack of movement on court proves his undoing.
Leander Paes had a bitter-sweet experience at the Australian Open, sailing into the semi-finals of the mixed doubles but crashing out of men's doubles, in Melbourne, on Wednesday.
France's Arnaud Clement beat Jonas Bjorkman indoors at the Nottingham Open for his second successive victory over a previous tournament winner, having earlier disposed of defending champion Richard Gasquet.
FIDE said in a statement that the game of chess has a "genuine global appeal" and that it has 189 national federations and 600 million people who practice chess globally.
Defending champions Andy Murray will play Ivo Karlovic in the final of the San Jose Open.
Top seeds Sania Mirza and Martina Hingis went through several anxious moments before getting past Russian girls Daria Kasatkina and Alexandra Panova in their opening doubles match at the French Open on Wednesday. The reigning Wimbledon, US Open and Australian Open champions prevailed 7-6(4), 6-2.
Djokovic dropped only three games against Klizan.
Croatia's Ivo Karlovic became the oldest ATP winner since Jimmy Connors in 1989.
Maria Sharapova, Serena Williams and Andy Murray were the big names to win on Monday and advance to the quarter-final of the Wimbledon.
It may have been the Labor Day holiday in the United States on Monday but Andy Murray came ready to work, demolishing Grigor Dimitrov 6-1, 6-2, 6-2 to storm into the quarter-finals of the US Open.
Prajnesh Gunneswaran's terrific run at the Indian Wells Masters came to an end following a straight set defeat against big-serving Ivo Karlovic.
Indian tennis stars Leander Paes and Sania Mirza cruised into the mixed doubles pre-quarterfinals of the French Open along with their respective partners in Paris on Thursday. While Paes and his Swiss Partner Martina Hingis, winners of three Grand Slam titles last season, beat German-Colombian pair of Anna-Lena Groenefeld and Robert Farah 6-4 6-4 in the opening round, second seeded Sania and Ivan Dodig of Croatia eased past French duo of Mathilde Johansson and Tristan Lamasine 6-4 6-3 in their opener later in the day. However, it was curtains for another Indian Purav Raja, who, along with Ivo Karlovic of Croatia, crashed out in the opening round of the men's doubles event. The duo lost 1-6 2-6 against ninth seeded Polish-Austrian pair of Lukasz Kubot and Alexander Peya.
IMAGES from the Australian Open on Tuesday.
A summary of Tuesday's play at the French Open.
Stanislas Wawrinka had to dig deep to beat Borna Coric at the Western & Southern Open in Cincinnati on Wednesday and conceded his thoughts had been far from tennis over the past few days.