The two Ligue 1 clubs are currently in negotiations over the 23-year-old but their valuations of the Cameroon international differ by two million euros.

Everton have also closely been linked to Mbia but he claims there is only one club for him.

"My lawyer and my father are studying the different offers even if Marseille are in first place," Mbia told RMC. "My wish is to join that club as soon as possible.

"The financial aspect is stopping it still but I'm confident it will be sorted.

"It's close to succeeding. My coach Pierre Dreossi, who has always advised me well, wants to find the right time to agree. But I have chosen Marseille.

"Rennes want 12 million euros while Marseille are offering 10. We're working towards an agreement. I'm not holding it against Rennes, the club I developed at. who are right to claim what they need.

"I talk every night with the coach (Didier Deschamps). I dream of playing under his command and he told me he's waiting for me.

"I hope there will be a quick agreement because I have chosen OM."

Mbia admitted it was also the lure of playing Champions League football that has seen him opt for Marseille rather than Everton.

"I'm young and there are still certain things for me to discover, such as the Champions League," he added. "The club is in line with what I want and it's a very good sporting challenge."