According to reports in France, Chelsea sent a scout to re-watch a former target in Giannelli Imbula after such a strong start to the season.
The French under-21 international has really improved over the summer and caught the eye enough for Chelsea to re-open their interest in the central midfielder despite the riches they have in that area.
The 22-year-old has competed in all 10 games for Marseille this season and has helped OM to pole position along the way.
Last season, in Ligue 1, the young midfielder played just 1,222 minutes of football, scoring one goal and assisting none. In that time, he failed to really make an impact and lacked a certain edge to his game.
However, since the the new campaign kicked-off, he has been ever-present for the league leaders and has almost improved every area of pitch. Whoscored certainly think so with his overall rating from last season going up a complete mark from 6.6 to 7.6.
Shots per game: 1.9
Key passes per game: 1.2
Average passes per game: 50.1
Pass success rate: 88.8%
Dribbles per game: 3.7
Tackles per game: 1.9
Interception per game: 0.9
Fouls per game: 0.9
Fouled per game: 2.3
The clear mark of improvement may be the reason Chelsea are back scouting the player, because given their options already it's hard to see where the talented midfielder fits in.
If Chelsea do step-up their interest then it would likely be for cover off the bench. A similar role to that Mohamed Salah fills for the more attacking players now. Although, John Obi Mikel is more than capable of providing such cover, as well as Lewis Baker and Nathan Ake in reserve, his arrival would ask serious questions over the Nigerian's future at the club.