CREATE TABLE table_40944 ("Season" TEXT, "Round" TEXT, "Opponents" TEXT, "Home leg" TEXT, "Away leg" TEXT, "Aggregate" TEXT)

What is the home leg who are opponents of rotor volgograd
SELECT "Home leg" FROM table_40944 WHERE "Opponents" = 'rotor volgograd'
SELECT "Home leg" FROM "table_40944" WHERE "Opponents" = 'rotor volgograd'