My guess: they benched their best players for the next CL-game. Imho - if so - a stupid decision. A game is the best training one can have, and it also disrupts the routine. The kicker (major sport paper) is speaking of a B-Elf what would confirm my assumption.
Last but not least: it is unfair to the other team, and thus I hope they will crash out against Ajax. Bastards.
