career slam

Zverev could achieve something unthinkable in a few weeks time. If he reaches the Wimbledon final and loses, he'll have all 4 runner-up trophies in his cabinet, without ever winning a slam. Has any player (male or female) been anywhere close to this achievement in the history of tennis?? Mečíř...

i'm not 100% sure but i think that during the single final of paris-bercy i heard a commentator saying that daniel nestor has won every tournament (in double) he ever entered at least once (or something like that). could this be true ? of course, if we are nit-picking, i guess we could find...