Re: if sampras would play in this era....
Nole and Nadal would do good in 90s. Nole would still win HC titles and had great shot at Rg and none at Wimb. Nadal would own clay badly and Mugray would be fine too. They are far superior on physical level, fast court or not they would adapt and rack up few slams.
To the well-organized mind, death is but the next great adventure.