The two legends had contrasting 2015 season before touching down the national capital for the high-profile event, which is the brainchild of India's very own doubles hero Mahesh Bhupathi.
Federer has been on an impressive redemption road this season while the Spanish player has endured his first season in a decade in which he has failed to annex a single Major title.
The fans will miss out on watching Djokovic, who was to play for Singapore Slammers, as the Serbian has pulled out of the event at the eleventh hour citing fatigue.
But other big names in men's tennis -- Andy Murray, Stan Wawrinka -- and some charming heroes of the past such as Marat Safin and Carlos Moya will be there.
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The League has Indian stars in doubles world number one Sania Mirza, Rohan Bopanna, who will represent the home team, Indian Aces, while legendary Leander Paes will use his skills for Japan Warriors.
The home team, which is on a roll having won three out of the four matches so far, also has world number five Agnieszka Radwanska, who ended the season with a bang by emerging WTA Finals champion.
The much-awaited men's singles clash between Nadal and Federer, the two great rivals on tennis courts, is scheduled for December 12 when Indian Aces will take on UAE Royals in the last match of the Delhi leg.
More than anything, it is a great opportunity for the Indian fans to see their tennis heroes live in action even if it is not competitive and not much is on stake.
Bhupathi from day one has maintained that this effort is
to bring heroes to the countries that do not host major tennis action.
Naturally there is immense interest with all superstars assembling here for the League but it remains to be seen if there they manage to attract more crowds than the inaugural edition.
Last year tickets were available in the range of Rs 3000 to 50,000 while this year the least-priced ticket is available for Rs 4000 and 4000 tickets are available in this category.
The claims are that this category is sold out but it remains to be seen if fans are willing to dig more deep in their pockets to cheer for their favourite stars. The maximum price for tickets this season is Rs 48000.
"Last year we had to pay only 15% entertainment tax but this year we are paying an additional 14.5% service tax, so we have tried to rationalise the pricing across all categories. We have increased price marginally in the lowest category but this year we have more saleable tickets with us, so we are hoping that more people will come and watch the action."
Asked to elaborate, Jhurani explained that as per their contract with Sports Authority of India they are to give 10 per cent of total tickets as complimentary to SAI but this year they have lobbied to get it reduced to 5 per cent.