CREATE TABLE table_3055 ("Rank" FLOAT, "Player" TEXT, "Points" FLOAT, "Points defending" FLOAT, "Points won" FLOAT, "New points" FLOAT, "Withdrew due to" TEXT)

List the rank of the player that left the tournament due to right foot injury
SELECT COUNT("Rank") FROM table_3055 WHERE "Withdrew due to" = 'right foot injury'
SELECT COUNT("Rank") FROM "table_3055" WHERE "Withdrew due to" = 'right foot injury'