Pretty exclusive club, this. We'll leave Emmo out so that he can be the umpire. Sorry to Mac, Connors, Agassi, and everyone else. You can watch but you can't play. You gotta have at least 11 GS singles titles to qualify. Imagine a doubles match with everyone in their prime. (Please ignore that we will need a time machine to do this.) Give everyone 90 sq. in. graphite-wood hybrid racquets with Lux and VS gut, or if they insist something more modern. On one doubles team is Laver and Federer. They seem to like and respect each other, and both could be called all-court players. Fed takes the deuce court and Laver--the lefty--covers the add court. On the other team is Sampras and Borg. Both righties, but complementary abilities: Sampras as the great server and volleyer, and Borg as the fastest baseliner and most precise passer who ever swung a stick. Who're you pulling for?