Roger Federer, Novak Djokovic brushed aside their opponents to reach the quarter-finals while Rafael Nadal was made to sweat before joining the final eight of the Italian Open on Thursday.
Third seed Andy Murray pulled out of the Italian Open due to injury on Wednesday as Rafael Nadal advanced to the third round.
World number one Serena Williams inflicted swift revenge on behalf of her older sister when she beat Britain's Laura Robson 6-2 6-2 in the Rome Masters on Tuesday.
The incoming host of year-ending Women's Tennis Association (WTA) Championships from next year could probably generate incremental tourism receipts of about 15 million Singapore dollars ($12.1 million) each year.
Rafael Nadal sped to victory in the final of the Madrid Open this Sunday as he defeated number 16 seed Stanislas Wawrinka 6-2, 6-4.
Victoria Azarenka lost her temper and was docked a point for smashing her racket on the way to a surprise 1-6 6-2 6-3 defeat by unseeded Russian Ekaterina Makarova in the Madrid Open second round on Wednesday.
Singapore will host the glittering annual finale of the women's tennis season from 2014 until 2018, the WTA said on Wednesday.
Novak Djokovic was dumped out of the Madrid Open in the second round Tuesday when he went over on his ankle and incurred the wrath of the locals on the way to a shock 7-6 6-7 6-3 reverse to Grigor Dimitrov.
Rafa Nadal's seeding at the French Open is irrelevant as the Spaniard's prowess on clay means he will always be dangerous, his great rival Roger Federer said on Sunday.
It was a bad day for two of the three Chinese players in the Madrid Tennis Masters this Sunday as both Li Na and Zheng Jie lost their first round matches.
Australia's Brad Drewett, the president of the ATP, died on Friday at the age of 54 following a battle against motor neurone disease, the governing body of men's tennis announced.
Chinese tennis star Li Na arrives at the Madrid Tennis Masters in a positive frame of mind after a successful start to the season.