I don't know why it took so long for Rafael Nadal to change serve, Wilander

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• Rafael Nadal

Mats Wilander feels confident about Rafael Nadal's chances to go far at the Australian Open. The Swede praised the Spaniard's performance in the straight-set second-round win over Matthew Ebden. 'It was a perfect match', Wilander recognized.

'Ebden doesn't have enough big weapons to fight against Rafa. Rafa is moving very well, with all the injuries he had in the last months' movement is the most important. He is bringing his level a little bit up, he hits first serve hard every single time and because of that, his forehand is gonna become more successful as well.

I do not know why it took him so long to change his serve because it's a simple change technically. I think Carlos Moya, who helped Milos Raonic tremendously as well, played a big role.' Wilander also praised Stefanos Tsitsipas' potential: 'He is ready.

He is gonna play well on all the different surfaces, he has the right mindset, he loves to compete, he has good hands, he moves well, great attitude and there is a lot of improvements that can be made. Out of all the young players, he is the safest bet to me to be in the top 10 at some point in his career.

I really think so. Denis Shapovalov is another guy who comes to my mind, he is a little bit more rough though.' Wilander felt cautious about the real Kerber's chances to go all the way. Last year she lost to Simona Halep in an epic three-set semifinal.

'I do not say that she is favorite in the tournament because you see Serena and I am not sure she (Kerber) is hitting as hard. But Kerber is hard to beat, she needs to keep developing her games. If that switches to Grand Slam wins, we will see', concluded Wilander.

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