Sounds like your jealous sister twisted!! Maybe your own tennis career didn't go so well? Leave the guy alone. If he wasn't good enough to be playing top level, he wouldn't be there. IT'S HIS CAREER!! What's yours? Anyone ever told you, you have go?
Good looks (He models and is on the front of magazines) when his tennis lets him down he can still make oodles of money
Talent, if you stop comparing him to the No 1s... look on wiki!!!! touche!!!!! you will see what he has achieved and ALL without talent (according to you) heh heh
Players try hard to keep their ranking poitns from what they work hard to get. Sometime through injury they lose some poitns like Nalbanidan and Blake because they can't plpay to protect those valuable points.