Nick Kyrgios says playing Roger Federer can 'make you feel like s***' amid success over Rafael Nadal

Australia’s tennis star Nick Kyrgios has revealed that he found it hardest to play against the former world number one Switzerland’s Roger Federer.

The 42-year-old announced his retirement from the sport in September last year after consistently struggling with fitness concerns.

Kyrgios was quoted in a report recently where he stated that he found it hardest to play against Federer who was the crowd favourite everywhere.

"It's a hard one because when I came on to the scene, I beat Federer, Nadal and Djokovic the first time I played either one of them, and then I've played them all multiple times now," he said. "I matched up really well against Nadal, like, I had most success against Nadal but Federer could make you feel really s**t.

“No matter where you played him in the world, he was the fan favorite. Playing in Europe, America, Australia, everyone wanted Federer to win all the time.

"So, I think Federer for me was probably the hardest to play, like, Novak is the greatest of all time, but for me, Federer was the hardest. He was really aggressive, he didn't give you much room to breathe.”

Federer is often termed as one of the greatest players in the history of men’s singles tennis in the Open era.

He was the first men’s player ever to win more than 15 Grand Slam titles and was also the first to win 20 major singles titles.