Marseille striker Loic Remy is expected to miss the Ligue 1 high-fliers' next two games after suffering a thigh injury in Sunday's draw with Nice.
The France international came on as a second-half substitute as OM were held 2-2 at the Stade Velodrome but had to be replaced himself in the closing stages.
A statement on the club's website read: "Loic Remy had scans this morning which revealed a small detachment of the membrane in his left thigh. He will be unavailable for between 10 and 12 days."
Marseille take on Bordeaux in the league this coming Sunday and Fenerbahce in the Europa League a week on Thursday. They will hope Remy can return for the home clash with Lille next Sunday, 14 days after the injury occured.
In addition, back-up goalkeeper Gennaro Bracigliano faces three weeks on the sidelines after suffering a shoulder injury in the warm-up before the Nice game.
The match itself saw OM twice lose the lead and miss a host of chances including a first-half penalty as they failed to move ahead of fellow pace-setters and bitter rivals Paris St Germain.
Frustrated coach Elie Baup told om.net: "In the first half we had possession of the ball and created chances but sadly it was only 1-0 at the break.
"Football is about the moment of truth. We are good in possession and in the build-up but we must be more aggressive and efficient."
Baup showed little sympathy towards Mathieu Valbuena, who missed Marseille's spot-kick.
He said: "It was our first penalty of the season. There are plenty of options to take them and Mathieu Valbuena is one of that group, after that it is a question of how they feel on the pitch.
"We are dealing with professional, international players, this is not kindergarten."
Valbuena later restored Marseille's lead after Andre Ayew's opener was cancelled out by Dario Cvitanich, but Fabrice Abriel came back to haunt his former club with a late second equaliser.