Chelsea were handed a disappointing 2-1 defeat by Manchester United in the Premier League on Saturday. Chelsea fans are left wondering whether this is just the start of another disappointing season to come. Despite a largely successful summer transfer window, the club haven’t been able to fill a major void in the squad. Chelsea made this huge mistake in the summer transfer windowIn the last season, Chelsea missed the services of Wesley Fofana. This might prove to be a costly mistake, and the current run of poor games is already showing signs of that.