The seven-time Grand Slam winner Mats Wilander is amazed by Roger Federer's longevity. The Swede believes the Swiss can compete until he is 40 or 41 years old. "He seems to have this unbelievable ability to lose a couple of matches on the regular tour but it doesn’t seem to affect him that much in terms of how he works, his practice and how he plays five set matches", Wilander told Eurosport ahead of the US Open.
"Obviously we are dreaming to think that he is going to be a threat in Grand Slams for another five years, that’s not going to happen but I would say most probably his career will come to an end maybe at the end of 2021 or 2022.
This is when we have to most probably think 'okay, that has to be it' but hey, he’s already defying everything we thought was possible in tennis." Wilander believes there is a youngster that can go far: "I think Felix Auger Aliassime.
He’s most probably the one who has the best chance of doing something that’s extraordinary.Somebody like Stefanos Tsitsipas has the chance to be a multiple Grand Slam winner but of the ones that we know of now, winning 15 Slams, I would say that it’s one of the two of them of the ones that are playing now.
There might be 16, 17-year-olds out there but I think they both have great attitude and can both play on all the different surfaces. Physically they are absolute specimens and mentally they have an unbelievably good attitude.
Tennis-wise they are good enough but they have the physical and the mental parts that you need to have to even want to think that far. So yes, there is a possibility [they could compete with the Big 3]."