Maybe he gets injured often but it doesn't last long at least. Real Madrid really need him though. His productivity is really important for the team. But even in his absence Real Madrid are actually strong enough to beat smaller teams. But they have made simple mistakes in some games which led to unexpected results. They need to step up if they want to maintain their claim for the league title.
Carlos Ancelotti is doing good job, but this is wired why he has no player for the running season even all were aware of Karim Benzema situation, and they were defending two titles but still have no suitable replacement which create some mess up for them in middle of this season.