I dont think Federer will retire once he starts losing on a regular basis. Hes more like the Agassi kind i think.
Henin's career has been built around her physical fitness. Of course shes talented but she has exceptionally worked harder on her fitness than most players and even she said that. Thats emotionally draining. I was shocked when I heard about this. Running on the treadmill at the gym watching the sports bar on CNN
but you still say its expected from her.
Shes always been reserved and private even with her family so im not surprised she ever mentioned anything pblicly about when shed like to retire, what she'd like to do with her life after tennis etc