3. Age
Despite spending more than half of the 2023/24 season on the sidelines due to injuries, the English defender is still 25-years-old and has a lot of potential.
Chelsea have left the centre-back from their preseason plans which could give a much needed transfer to Chalobah. The last three seasons, Chalobah has worked under three different managers which has kept him off from establishing his place in the starting lineup.
Add to the fact, Chelsea have signed a lot of players in the last two seasons, particularly in the defence which hasn't helped Chalobah. However, at West Ham under Julen Lopetegui it's a fresh start for Chalobah who will get time and the manager's trust to succeed at the London Stadium.