Aug 29 (Reuters) – Novak Djokovic said he is never satisfied with early losses but that his second-round exit at the Cincinnati Open gave him ​extra time to prepare for the U.S. Open, ‌where he will chase a record 25th Grand Slam singles crown.

The world number five fell to Argentine Thiago Agustin Tirante in Cincinnati after struggling in the heat and requiring a medical ‌timeout.

“I ​don’t like early losses anywhere, to ⁠be honest, but it ⁠gave me time to be preparing for the U.S. Open in a most adequate way,” the 39-year-old Serbian told reporters in Flushing Meadows on Saturday.

He said ​he had a couple weeks to train and get his body and mind “into the right state” heading ⁠into New York.

“If you ask ⁠me if I’m prepared, I feel like ​I am, as best as I can be, but it’s ​different training and then getting out on the ‌Arthur Ashe Stadium and playing best-of-five (sets),” Djokovic said.

“The opening matches are always for me, particularly in the last few years, quite challenging,” he added. “So hopefully I can ⁠overcome the first hurdle and build from there.”

Djokovic also said he was proud to be appearing at his 20th U.S. ⁠Open, which he ‌has won four times.

“Obviously longevity was ⁠always one of the goals when I ​was ‌younger, trying to have long career, trying ​to have ⁠more shots at Grand Slams, and stay healthy long enough so that I can perform for as many years as possible,” he said.

Fourth seed Djokovic will open campaign against Argentine Mariano Navone.

(Reporting by Nicole Fernandes in Toronto, editing ​by Pritha Sarkar)