James recent injuries should be blamed on the Chelsea fitness staff that gave a go ahead for Reece James to feature in a game he wasn't fit to play in. Reece James personal fitness coach wasn't happy with the decision to rush James into playing the Bournemouth game and now he'll miss important games like the match against Manchester city (twice) and Liverpool. Those are the game his absence will be felt because we could ave easily won the last game and win the upcoming game against Nottingham Forest F.C without games.
The only wish we have now is for the injury not to result to surgery as that'll means Reece James will miss the whole season and that includes the game against Dortmund in the champions league. If there won't be any surgery and he returns in one month time as speculated then by February 15th when Chelsea plays Dortmund, Reece James should be ready and fit to play that match which will give us some boosts.