Rafa won most slams after age 30 in history of the sport.No one can question his longetivity anymore but he has to stay in form and injury free for the next 2 years.A possible huge slump like 2015 and 2016 or mild slump but no MAJORS there wont be any chance breaking the slam record.20 to 19 it is very close but Rafa is also cant be as consistent as he is forever as he is since 2017.i dont believe he is capable winning after 35 not even in RG.