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We know that Manchester City and Chelsea haven't been afraid to spend money during recent years, and both clubs improved their squads during the summer transfer window. So, it will be interesting to see how they approach the January transfer window.
Chelsea have started the season superbly, but Man City have started more slowly than they would have liked. Roberto Mancini's side haven't been as defensively sound as they were last season, and Chelsea might struggle if Fernando Torres picks up an injury.
Therefore, both clubs may want to ensure they have the required cover in their squad.