CREATE TABLE table_50587 ("Outcome" TEXT, "Year" FLOAT, "Championship" TEXT, "Surface" TEXT, "Opponent" TEXT, "Score" TEXT)

what is the surface when the championship is rome and the opponent is sergi bruguera?
SELECT "Surface" FROM table_50587 WHERE "Championship" = 'rome' AND "Opponent" = 'sergi bruguera'
SELECT "Surface" FROM "table_50587" WHERE "Championship" = 'rome' AND "Opponent" = 'sergi bruguera'