Cavvallini
Rookie
While the clay field today isnt exactly super deep I think Sampras would likely have even worse results today on clay with the baseline oriented field. Also clay has not been sped up or anything today. If anything clay was also faster in the 90s than it is today, as they put more topping on the clay in the mid to late 90s (which helped Sampras reach his lone semi in 96).
I dont see Sampras being a real contender at Roland Garros today at all, just as he wasnt really then.
In general I agree BUT if you give Pete the advantages of todays sticks and strings, with strokes built around today's sticks and strings, I'm not so sure. He would consistently hit 130+ 1st serves. His BH, which was his main weakness on clay, would be vastly more stable because of a proper stroke, larger frame and polys-spin strings. It's impossible to compare without taking into consideration the impact of the latest equipment.