At the end of last season, Bakayoko was operated on his knee, and now the midfielder is recovering. It was because of this that he still did not complete the medical examination in Chelsea, despite the fact that the clubs agreed on the transfer amount.
The London club still hopes to complete the transition this week before the team goes on tour to China and Singapore, but the physical form of Bakayoko raises questions.
Head coach Antonio Conte is concerned that Bakayoko will not be able to get in shape until September, because of which the Frenchman risks to miss the first three matches of the new Premier League season against Burnley, Tottenham and Everton.