Wow! You did have great seats.
I worry about Rafa's knees too. I don't know how he's played on them so long, and as you said, at such a high level.
I can't believe he's playing those exo's, but I guess he knows his body better than I do.
I just want him to hang around a little longer.
I don't know what I'll do when he leaves the game. Not too many people can match him in the intensity department.
He's always trying to win. I find that very admirable.