Do you think any pro tennis player can be in their prime

[only human]

Going into their 30's? i guess this could be true for a player that
doesn't play much. but certainly not in Federer's case who has played
more then most. and still hasn't missed any slams due to injury or a
illness. i think i know why guy's like Fowler on espn-2 keep saying
Federer's in his prime. it's clearly said to give Nadal more credit when
ever he beats Federer. i just wonder how long these guy's claiming
Rogers in his prime are going to keep saying this crap? their's just no
way Federer can be in his prime. hello? why do these guy's think Federer
now needs a coach? its pretty obvious Federer isn't as fast. his ground
game is a bit weaker. so he's now trying to play a more aggressive game.
and get shorter points. but with this said he still appears way better
then most of the guys on tour. which says a lot.