Marin Cilic said he would welcome coach Goran Ivanisevic’s “plain and straight” assessment of his win over Mikhail Kukushkin.
The reigning US Open champion battled into the fourth round thanks to a 6-7 (5-7) 7-6 (7-1) 6-3 6-7 (3-7) 6-1 victory over Kazakh Kukushkin at Flushing Meadows on Friday.
Cilic was displeased with his performance, which included serving at just 53 per cent and committing 53 unforced errors.
The Croatian said Ivanisevic would be pleased, but will also point to negatives, in assessing the victory.
“He’s going to tell me straightforward what was bad in the match,” Cilic said.
“Served incredibly bad today, you know, and a few things out of the match he’s always going to be straightforward, very simple.
“Of course, end of the day the most important is a win. Nobody is going to look at it that way.
“The worst part is when you play well and you lose. When you play bad and you win, that’s always most pleasing.”
Asked if Ivanisevic simply told him what he did, Cilic said: “Yeah, just straight. Plain and straight.”
Cilic will meet Frenchman Jeremy Chardy in the fourth round after the 27th seed beat David Ferrer in four sets.