Three-time Grand Slam champion, Stanislas Wawrinka poured encomiums on the achievements of great trio, Novak Djokovic, Rafael Nadal and Roger Federer. He admitted his pleasure in watching them play matches.

The world number 18, who is in the St. Petersburg Open quarter finals, was highly spirited by the accolades Nadal in the French Open, especially when the Spaniard bagged his thirteenth Roland Garros gift, crushing Djokovic on a three straight sets.

“What [Rafael Nadal] is achieving so far in the French Open is one of the greatest achievements of any sports probably, winning 13 time [the] French Open,” Wawrinka said of Nadal claiming a record 13th title at Roland Garros, per Max Gao” the Swiss player said in parts

“The way he is doing it, it’s something amazing. I had the chance to play him there [twice] at the French Open, always got killed, so I know how difficult it is to play him there.” He added.

The former world number three admitted that he loves seeing the Big Three play matches, but finds it difficult to make comparison among them.

“And I think it’s always difficult to compare [the Big Three], especially those amazing athletes, especially that they are still playing, so we don’t know [who the greatest of all time is right now],” Wawrinka confessed.

“I think we will have to wait and see. I think we have to more enjoy that they are still playing, they are still doing something amazing for our sport in general, and that’s something that I like to watch. I like to watch them play and as long as they will play, I will enjoy that.”

However, Wawrinka spoke of his tie with Russia’s Evgeny Donskoy, breezing to the final eight of St. Petersburg, in 6-1 3-6 6-3 victory.

“A tough opponent but my level was better from the beginning. I played a good first set and I’m happy to keep winning here. A great atmosphere, a great sort of people here tonight and happy to play a QF [next],” Wawrinka said

“I think in the second [Donskoy] started to play a bit more aggressive, he was dictating a bit more the game and I think the level in general was great from both sides. I’m happy to get through. I think I played a really solid match tonight and I’m happy” he ended.

Wawrinka will be facing Dennis Shapovalov at the quarter-finals of the St. Petersburg Open.