Patrice Evra fears Manchester United's first-leg tie against Marseille is a 'dangerous game' as their opponents have nothing to lose.
United are favourites to progress to the quarter-finals of the UEFA Champions League, but face a tricky test at Stade Velodrome on Wednesday evening.
French full-back Evra believes Marseille will be confident of beating United and expects coach Didier Deschamps to have the Ligue 1 champions primed for action.
"They are going to be confident of beating us, there is no doubt about that," said Evra.
"It's a dangerous game for us because we are favourites so in a way Marseille have nothing to lose.
"But I've watched some of their games this season and you can see they are a good team and they have a great manager in Didier Deschamps, who was my coach at Monaco.
"He is not afraid of any team and I know he will get his players motivated before the game so they play with no fear."
Evra is also looking forward to meeting up with Gabriel Heinze again after the two defenders spent 18 months as part of the same United squad.
He added on the club's official website: "Gaby has been playing well for Marseille.
"I am pleased for him because it wasn't easy at first with him being a former Paris St Germain player. There is a big rivalry with Marseille.
"I am happy to see him doing well and he will get a big ovation when he comes back to Old Trafford because he played so well for United.
"But I don't want him to win against his old team."