Well, if he's out vs Lyon, it's a bit of a problem. Rabiot, Bentancur, and Matuidi in midfield? The options don't inspire confidence. Matuidi is useless with the ball, Khedira, when fit, is about as pacey as a snail, so a recovering Khedira is probably slower, and Berna is...... (nothingness). Ramsey hasn't been setting the world alight either, so we don't really have options, especially off the bench.