Boga, who spent this season on-loan at Birmingham City, was born and raised in Marseille before moving to London.
"I was born in Marseille, so for me it's special the Velodrome. OM is my heart club, I will always support it. So yes, with everything that happened in the previous rounds, it's a club which is special to me.
"It will be complicated, but it is a final and anything is possible. I hope they will win against Atletico."