Chelsea with serious problems?

Last weekends defeat at home at the hands of Sunderland was Chelsea's biggest home defeat in 8 years. In addition to that, the news that followed that both central defenders, Alex and John Terry will be out for several weeks, meaning that there will be no recognisable partnership in defence for Chelsea in the coming weeks is probably news that the other title contenders are relishing. Now it's time to take advantage. If Chelsea can come out of this period of the season without Terry and Alex still top of the league, it will be hard to see them stopped in my opinion.