Yuki, ranked 195 in the world, took 76 minutes to stun 64th ranked Busta 6-4 6-3 in the opening round to set up a clash against third seed Fablo Fognini of Italy in the pre-quarterfinals.
Yuki, in all probability, will make the quarterfinals without taking the court as his next opponent, Fogini, who was partnering Indian ace Leander Pace, has pulled out from the men's doubles event due to a strain in his left leg.
But it has been learnt that Fogini would take a call on his participation in the singles event by tomorrow evening.
However, it was turned out to be a nightmarish outing for Somdev as he was shown the door in the opening round by qualifier Ramanathan Ramkumar in a marathon 147-minute duel.
Somdev squandered a set lead to go down 4-6 6-3 6-3 against the less-fancied Ramkumar ranked 526 in the ATP circuit.
Somdev, who is the main man in the Indian Players Association, was full of praise for Ramkumar and said that the youngster deserves the win.
