Last season's Europa League winners Atletico and reigning Champions League winners Chelsea will battle each other at Stade Louis II in Monaco.
"Chelsea have everything to gain, but even though we lost Diego, we have a very strong team and ambition," the Brazilian left-back is quoted as saying in AS.
"I was at the club for the last Supercopa, but I did not feel right for not having been to Hamburg (where Atletico won the Europa League final).
"Now I feel good. I was very scared of missing the final after the last injury I had."
Atletico won the UEFA Super Cup in 2010 when they defeated Inter Milan of Italy 2-0.