The winger, who has been capped 57 times by France, enjoyed two seasons at the Stade Velodrome and believes his former side will be difficult to beat later this week
Bayern is widely expected to progress to the last four at the expense of the struggling Ligue 1 outfit, but Ribery does not believe in the concept of favorites in Europe's premier cup competition.
"This is the Champions League, it is a different situation. And this is a good team [Marseille]. This will be a tough game," Ribery told Goal.com during a press conference on Saturday.
The France international departed the Stade Velodrome five years ago and will return to his old stomping ground later this week for the first time with Bayern.
Ribery is looking forward to going back to Marseille yet is adamant that he made the right decision in leaving for Munich in the summer of 2007.Indeed, when asked if he still has some affection for his former employers, the winger replied: "Of course, I played two years at Marseille, but I'm very happy here at Bayern."
Ribery also pointed out that Bayern showed some signs of fatigue in their 2-1 victory over Hannover on Saturday, after their midweek DFP-Pokal win over Borussia Monchengladbach.
"The team is of course a little tired," he conceded. "After the cup game, though, this is normal."
Bayern's first leg clash with Marseille at the Stade Velodrome kicks off at 2:45 p.m. ET.
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