Zurich, July 16 Swiss tennis player Stan Wawrinka is one of the greatest players of all time, according to the 35-year-old's long-time coach Magnus Norman.
Wawrinka is one of three players, apart from Andy Murray, Marin Cilic and Juan Martin Del Potro, to have won a Grand Slam outside of the trio of Roger Federer, Novak Djokovic and Rafael Nadal since 2003.
"Stan is one of the best players to ever play the game, if you look at his record, if you look at winning three Grand Slams, winning three different Grand Slams in the era where he had the Big Four playing," Norman told ATP Tennis Radio. "He's a little bit underestimated for sure ... He's had an unbelievable career."
Former world no.2 Norman worked with Wawrinka from 2013-2017. He has also been part of his coaching team since 2018.
"It's been a little bit up and down. He (Wawrinka) doesn't have the same stability as Andy Murray or Novak or Roger or Rafa, but in his best moments, I think he can beat all of those names on a very good day," Norman said.
"That's what makes him a little bit special.
"Stan is a gambler. He plays with small margins. He's the kind of guy that will put everything in red, do or die," he added.
( With inputs from IANS )