Tbilisi Mayor Kakha Kaladze has congratulated Nikoloz Basilashvili on his historic victory.
"I congratulate Nikoloz Basilashvili on his successful game!
Victory, and especially while playing against tennis legend Federer, is overwhelming joy.
More victories are yet to come! Congratulations!" he wrote.
Georgian first player Nikoloz Basilashvili has defeated one of the greatest tennis players of all time, Roger Federer.