The Belgium international is currently on loan at the Spanish club from Chelsea, having played for the Madrid side last season on loan.
"It's special for me as the game is against my own club, but I play for Atletico now," he told UEFA.com.
"It's me against Chelsea, and I want to win it. I keep my fingers crossed for them, for all my friends at Chelsea, and my Belgium teammates who play there now.
"I wish them the best of luck. But I want to win the Super Cup. I hope it will be a good match, and may the better team win."
Atletico won the Europa League last season, while Chelsea triumphed in the Champions League.