lol, only 15 or so, indeed.
but yeh, I always forget Rios, he was only 5' 9", wasn't he? ATP number 1..
as for Ferrer, I've met him a couple of times (lovely guy) and there is no way he's 5'9". I'm 5'9" (barely!), and I'm definitely taller than Daveeed!
so, OP, bit of a silly question, ye?
5.0 all courter. Dunlop Bio 400T with cyclone @ 50, Prince CTS Precision 90
"Tennis isn't easy" - Corners