With David Luiz’s future at Stamford Bridge in doubt and John Terry not getting any younger, the Blues are expected to make a move on long-term target Eliaquim Mangala.
The 22-year-old is widely regarded as one of Europe’s top centre-backs, but the problem is Manchester United and Manchester City are also keen.
Meanwhile, Jose Mourinho has been alerted of the potential of Marseille midfielder Gianelli Imbula.
The 21-year-old only joined OM this summer from Guingamp, but he has immediately commanded a starting berth at Stade Velodrome.
Considering the circumstances, it would take a substantial offer for Marseille to even consider their summer acquisition.
Chelsea haven’t had the best of starts to the Premier League campaign, but the Blues are 13/5 to get back on track and lift the league title for the first time since 2010.