Federer has not reached a French Open final before

And Bruguera, twice a winner at Roland Garros, is certain Federer will win in Paris, a feat that was beyond Sampras.

"Federer has a better forehand, better backhand, better returning, touch and feel," the Spaniard told BBC Sport.

"He has the perfect game for winning in Paris. But maybe he isn't as confident on clay as he is on other surfaces."

Nadal is young, unbelievably fit and he has a great game on clay - it's very difficult to beat him Sergi Bruguera

The only area of the game that Bruguera said Sampras was superior to Federer was his serve.

"Sampras had the better serve," said Bruguera. "That was 90 per cent of his game. But Federer has everything."

Bruguera predicted a Federer-Rafael Nadal final at this year's French Open, and said it would be almost too close to call.

"Maybe Nadal would have a slight advantage, so I say 60-40 to him," said Bruguera, who now plies his trade on the Merrill Lynch Tour of Champions.

"Nadal is young, unbelievably fit and he has a great game on clay. It's very difficult to beat him on that surface."

Your questions to Sergi Bruguera

Last year, Nadal beat Federer in four sets in the last four of the tournament.

Switzerland's Federer, who has amassed seven Grand Slam titles, has won a number of tournaments on clay but, like Sampras, has never made the final at Roland Garros.

Federer plays Ivan Ljubicic in the final of the Nasdaq-100 Open Masters Series event in Miami on Sunday.