Carlos Alcaraz and Jannik Sinner have been phenomenal at the US Open, but Alexander Bublik has both of them beat in one regard.
The World No. 1 and 2 have been in sparkling form at Flushing Meadows, as Alcaraz and Sinner vie for the ATP Tour top spot.
Neither man has dropped a set at the US Open yet, with Alcaraz confirming his place in the quarter-finals already.
Despite their scintillating form, Bublik has done something that neither man has achieved at Flushing Meadows.

Alexander Bublik is yet to drop a game on his serve at the US Open
Bublik secured his place in the fourth round of the US Open by defeating Marin Cilic, Tristan Schoolkate, and Tommy Paul.
The World No. 14 dropped just two sets in those matches, both coming against Paul during the third round in tie-breaks.
That means Bublik is the only player yet to have his serve broken at the tournament ahead of his fourth round clash.
Sinner and Alcaraz have both had their serve broken in the tournament, although neither man has dropped a set.
Bublik’s record will be put to the test in the fourth round as he plays World No. 1 Sinner on Arthur Ashe Stadium.
Alexander Bublik slams doubles tennis
Bublik might be having an impressive US Open tournament, but he’s unlikely to endear himself to some of the players on the tour.
The Kazakhstan star has dismissed doubles tennis as ‘boring’ in his US Open press conference ahead of his clash with Sinner.
“In a way it’s not real tennis,” said Bublik. “It’s for those who can’t play singles. They play doubles and then move on to padel or pickleball.”
This comes after the inaugural US Open Mixed Doubles tournament was criticised by doubles specialists after most were not invited to play the event.
