All three advanced to the last 16 of the Australian Open with some style.
The Mumbai lad pulled off the biggest win of his career when he beat the world No 106-ranked Brazilian in straight sets to enter the second round of the Chennai Open.
Germany has not produced a Grand Slam winner in the men's singles since Boris Becker won the Australian Open in 1996.
Federer's bid to win his first title on the clay courts of the Rome Masters juddered to a premature halt on Wednesday when he lost his second-round clash against Spain's Albert Costa 3-6, 6-3, 6-2.
Third seed Rainer Schuettler was the only high-profile casualty on the first day of the Rome Masters on Monday when he lost 6-2, 2-6, 7-5 to America's Vincent Spadea.
Top seed Rainer Schuettler beat Swede Robin Soderling 6-4, 7-6 in the first round of the Munich Open.
The former overpowered Alberto Martin while Coria beat David Nalbandian at the Monte Carlo Masters.
Lleyton Hewitt's run in the Monte Carlo Masters was halted by Germany's Rainer Schuettler.
The Indo-Belarussian pair lost to Arnaud Clement and Sebastian Grosjean in the second round at the Miami Masters.
The Argentine joined third seed Rainer Schuettler, fifth seed Mark Philippoussis and sixth seed Tim Henman as a first round loser.
The world number five went down 7-6, 6-2, 6-4 to Cyril Saulnier in the first round.
The sixth seed was beaten in the first round of the Australian Open by Robin Soderling.
The American ace took a step closer to the title he last held 13 years ago when he beat David Nalbandian.
Maria Sharapova won the women's crown for her first WTA Tour title.
Belarus will figure in the Davis Cup World Group for the first time while Germany are relegated for the first time in 20 years.
Lleyton Hewitt survived a Rainer Schuettler onslaught to advance 7-6, 2-6, 6-4 into round three of the Pacific Life Open.
The winner of the match will face either Yevgeny Kafelnikov or Felix Mantilla in the final of the Rome Masters.
The Austrian ended the run of the German favourite at the Munich Open.
The third seed withdrew because of a wrist injury that will sideline him for at least two weeks.
The German won a three-and-a-half hour battle to make the last 16 at Wimbledon for the first time.
Flavia Pennetta, Italy's newly-crowned US Open women's singles champion, will represent Mumbai Masters in this year's Champions Tennis League along with 1996 Wimbledon men's champion Richard Krajicek of the Netherlands following the players' draft, in Mumbai, on Wednesday. The second edition of the Champions Tennis League, the brainchild of former India Davis Cup captain Vijay Amritraj, will be played from November 23 to December 6, an increase of four days from last year's ten-day duration, announced Amritraj at a media conference after the players' draft.
Simona Halep will take over as the new number one in the WTA world rankings after progressing to the China Open final with a dominant 6-2 6-4 victory over Latvia's Jelena Ostapenko in Beijing on Saturday.
New coach Rainer Schuettler's experience as a former player at the top level has been invaluable for Wimbledon champion Angelique Kerber and the world number two believes her poor end to last season is truly behind her.
Novak Djokovic and Rogerer Federer loom over Melbourne Park for the year's opening Grand Slam as favourites for the Australian Open as questions remain as to whether one of Generation Next could finally end their stranglehold.
List of Australian Open men's singles champions since the event began in 1905 (Australian unless stated):
List of Australian Open men's singles champions since the event began in 1905 (Australian unless stated):