RealBrotzu
Rookie
I'd say he will retire end of 2021, that's being optimistic.
That means he still has 15 chances to win Grand Slams.
Provided he will win FO 2018, 2019, 2020 (I doubt he will), he'd still need 2 more Slams to overcome Federer.
TBH I don't think he can grab W or AO anymore, therefore he must aim for USO...but can he win it 2 more times? Plus, he must hope Federer will not win GS anymore. Basically old Nadal needs to win 33.3℅ of GS tournaments he is going to participate in, a better ratio than young Nadal.
That means he still has 15 chances to win Grand Slams.
Provided he will win FO 2018, 2019, 2020 (I doubt he will), he'd still need 2 more Slams to overcome Federer.
TBH I don't think he can grab W or AO anymore, therefore he must aim for USO...but can he win it 2 more times? Plus, he must hope Federer will not win GS anymore. Basically old Nadal needs to win 33.3℅ of GS tournaments he is going to participate in, a better ratio than young Nadal.