"Various factors led to it, things were adding up," said Bhupathi.
The top seed proved too good for Croatian baseliner Karolina Sprem in the Family Circle Cup.
The world No 8 said he hopes to continue teaming with the Indian ace even after the Mumbai Open.
They routed Michael Berrer of Germany and Kenneth Carlsen of Denmark on Sunday.
Cypriot Marcos Baghdatis won his first ATP title with a 6-4 6-0 victory over Croatian Mario Ancic at the China Open on Sunday.
Both players were taken to three sets by lesser-fancied opponents in the semi-finals.
Ivan Ljubicic and Nikolay Davydenko advanced to the quarterfinals of the China Open.
If Stanislas Wawrinka's hot streak extends another four days, the Swiss might be unstoppable in his quest for a second French Open title, three-time former champion Mats Wilander said.
The Indo-Croatian pair beat the third seeded American duo of Eric Butorac and Travis Parrott at the China Open.
Australian Nick Kyrgios exited the Rogers Cup to boos and a hefty fine from the ATP for insulting remarks.
Marin Cilic and Kei Nishikori will meet in the semi-finals at the Citi Open in Washington on Saturday, their first encounter since the final of last year's US Open.
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.
Top seed and defending champion Roger Federer returned to form to beat Japan's Kei Nishikori 6-4, 7-6(4) and reach the Shanghai Masters semi-finals on Friday.
The 2001 champion beat Italy's Filippo Volandri to set up a third-round showdown with Lleyton Hewitt at Wimbledon.
Top seed and defending champion Roger Federer battled past in-form Russian Daniil Medvedev 6-4, 4-6, 6-4 to reach the last-16 at the Shanghai Masters on Wednesday.
Roger Federer will hope the past does not come back to haunt him on Wednesday when he faces Mario Ancic in the Wimbledon quarter-finals.
Both players registered convincing victories to move into the second round of Wimbledon.
"As it seems now, I'm likely to take over as the team captain from Pilic, who will stay on as my adviser," the 34-year-old told a local newspaper.
Croatia have set a simple target of qualifying for the knockout phase from a group expected to be dominated by holders Brazil.
Agassi said in a statement that it was a regrettable decision and he would miss playing in the tournament.
The two players were fined after they pushed and shoved each other after their match.
Sania Mirza and Alicia Molik drubbed Jelena Kostanic and Angelique Widjaja 6-3, 6-3 in Istanbul
The world number one swept aside Spain's David Ferrer in the Nasdaq-100 Open semi-final and set up a clash with Ivan Ljubicic.
Roger Federer swept aside Spain's David Ferrer 6-1, 6-4 in Nasdaq-100 Open semi-final
Change might be afoot though, according to American great John McEnroe
News of all that's transpired on and off the football field
The second-seeded Cypriot, who earned his third career victory over Ljubicic, had to work hard for every point in the two-and-a-half-hour final.
Twice in arrears Rangers earned a 2-2 home draw with Villarreal
Let us travel to Kerala with the Ishq Vishk girl.
Six weeks after completing one of the greatest seasons in tennis history, Novak Djokovic begins his 2016 campaign and warm-up for his Australian Open defense in Qatar.
Croatia's Mario Ancic beat teenager Andy Murray 6-3, 7-6 at the Auckland Open
Call it sacrifice or compromise but Coric is ditching the sinful tiramisu.
New AC Milan coach Sinisa Mihajlovic is known for his hot temper and iron will and fans will hope those traits inspire rather than alienate his players as he bids to turn around the fortunes of Italy's fallen giants.
The Croatian replaced Sam Allardyce in June 2015 and led the club to a seventh-placed finish in his first season. He also oversaw their move to the London Stadium last season, but has won just two out of 11 league games in the current campaign.
Croatian beanpole Ivo Karlovic upset top-seeded compatriot Ivan Ljubicic to reach the quarter-finals of the grasscourt Nottingham Open on Wednesday.
Ivan Ljubicic and Mario Ancic beat Slovakian duo Dominik Hrbaty and Michal Mertinak in the doubles to give Croatia a 2-1 lead in the Davis Cup final.
