The Premier League season is almost halfway over now, and as well as having a clearer idea of who the main title contenders are, it also means that speculation, gossip and deal-making can commence as we approach the January transfer window.
Jose Mourinho has had much to say about Chelsea's potential activity—or lack thereof—this transfer window, but it is not often that a manager keeps his word as far as potential transfer deals are concerned. So that certainly won't stop us from weighing in on the topic.
We talk a lot about the players that each club should buy, but if Chelsea want to be in good stead for the rest of the season, there are certain mistakes that they should avoid making. Here are a few of the things that Chelsea should not do this January.