Only Slightly Intimidating

At the clinic this morning (in the picture, we're picking up balls after the warmup phase), at the next court is Guillermo Vilas, wearing his usual black, but playing with what I assume were his grandchildren (also wearing black indian hats). Just a little hard to not feel self-conscious while practicing.

http://en.wikipedia.org/wiki/Guillermo_Vilas

But he looks like this now:

http://www.atpworldtour.com/tennis/3/en/players/playerprofiles/default.asp?playernumber=V028