Drogba spent just a year at the French club, scoring 18 Ligue 1 goals, plus another 11 in Europe, in 2003/04 after arriving from Guingamp.
"I've said before that to win the Champions League is very important, but at the same time I know there are big players who haven't won it," said Drogba.
"Of course, because I am a competitor, I will do everything to win it. This is a competition I used to watch when I was younger - I used to watch and be happy to see players like Nicolas Anelka, for example, lifting the cup. So yes, that is something I want but it is not easy to win it.
"I think I can score more goals, and also maybe create more assists. Sometimes it's difficult to score so you need to help the team as much as you can. Creating assists is a big part of it.
"It's funny because I only played one year in Marseille but the feeling between the fans, the city, and me is unbelievable. I gave everything and they gave it back to me as well. They still love me and it's nice when I go there.
"I'm very excited because obviously people know how much I love Marseille, it's going to be the first time for me to go back there and be on the pitch, so it's going to be special.