An Easier Question: GOAT by Grand Slam and by Surface

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how many of you remember how sampras played? sampras is imo best on every surface called other than clay and if we count rebound ace as 5th surface then he is not best there too

i wouldnt count players who played most of their careers with wooden rackets

also i dont think becker was better on carpet than sampras or on any indoor court
i mean sampras won tons of tournaments in the end of the year