#3 His playing style might not suit Chelsea’s
Higuain is a typical penalty box striker, which means that he is not very comfortable dropping down to the middle third and help in creating moves. Chelsea usually plays in a 4-3-3 formation and would typically need their frontman to be a good ball-player.
They have also used Eden Hazard as a false 9 in quite a few matches, as his ball-skills have proven to be very useful in the final and middle thirds.
Moreover, Chelsea does not have too many good passers and crossers in their line-up and there might not be a steady delivery of balls to Higuain in the opposing penalty box. Chelsea’s playing style is not very direct, and Higuain would not find it easy playing like a typical no. 9.
This is precisely the reason why Morata has been a failure for the Blues, as he is also a penalty box striker primarily. It would be interesting to see how the Chelsea management deals with this conundrum upfront.