IPTL, a hit concept launched by India's first Grand Slam winner Mahesh Bhupathi, featured a marquee clash between Indian Aces' Nadal and UAE Royals' Federer last year in Delhi.
In the absence of star players, such a clash will be missed this year as world number 28 Feliciano Lopez from Spain is so far the highest-ranked singles male player in the Indian team.
"One of the Big Four is definitely coming. We did not want to reveal all our cards today. We will announce the name in the next 48 hours," Bhupathi told PTI, confirming that a few big names will be missed.
There are murmurs that payment issues are plaguing the league but Bhupathi asserted that there was no truth in it.
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"That's why they say don't believe in everything you read," he added further.
The Indian team has shifted base to Hyderabad and Bhupathi said it was done to take the league to other parts of the country.
"There is no particular reason, we did it there (Delhi) for two years, the fans enjoyed world class tennis. The concept was built about having one team for country. Last year, we did it in Kobe (in Japan), this year we are doing it in Tokyo. The owners wanted an opportunity to move to a different city, to see if they get good buzz," Bhuapthi said.
Phillipines Mavericks are also not featuring in the 2016 season.
"The owners still own the team but there was some political instability there, there were worries about players travelling there," Bhupathi clarified on absence of Mavericks.
India's veteran star Leander Paes, who played for Japan Warriors last year, is also not there this season.
"The number of players changed since one team sat out," Bhupathi said.
Mutliple Grand Slam winner Serena Williams is the biggest name revealed so far among women. World number five Kei Nishikori is the highest-ranked male player confirmed so far.
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