Souleymane Diawara has reached the yellow card limit for European competition and so misses this match, while Steve Mandanda was sent off in the dying moments of Marseille's win over Inter in the last round, so he will not feature either.
Loic Remy remains a doubt after missing the draw at Nice at the weekend due to injury. Brandao could start up front if the Frenchman does not make it.
Diarra, Morel, Amalfitano and Andre Ayew are all one yellow card away from incurring a suspension.
Bayern are unlikely to make many changes ahead of the trip to Marseille.
Bastian Schweinsteiger, Breno and Daniel van Buyten all remain absent through injury, but that should not affect the line up, with Bayern in scintillating form of late, even with these players missing.
The potent front four of Ribery, Muller, Robben and Gomez should all start, while David Alaba could continue at left back.
Boateng and Muller are the only fit players for Bayern for whom a yellow card in this match will mean a suspension in the second leg.
Marseille made it through to the Champions League quarter final thanks to a late away goal from Brandao at the San Siro. Even though they made it through and will be delighted to have done so, that game was yet another loss for the French side - in a run of 7 losses and a draw in their last 8 matches since beating Inter 1-0 at home in the first leg. That run has seen them slip to 9th in Ligue 1 and put them in very real danger of failing to qualify for next season's competition.
Bayern, on the other hand, are flying. They have won their 4 of last 5 matches, scoring 20 goals in the first 3 of those games and they will thus be huge favourites to win this tie.
Marseille have made it to this point in the competition averaging just 3.5 shots on target per game, the second fewest of the teams who made it through to the knockout stages, while Bayern have had 8.3 per game. Bayern also tend to dominate possession, and both trends are likely to continue here, with Bayern taking charge of the match and probably continuing Marseille's dire run of form. The French side might just be powerless to stop Bayern's attack, and away goals could all but kill the tie off before they even reach the second leg.
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