Chelsea boss Mauricio Pochettino says they have a new fitness programme written up for Reece James.
The club captain is now fully fit after suffering a hamstring in the second game of the season.
"He's much better," Pochettino said.
"He's doing well. He's progressing. He's still not at his best, not 100 per cent, but he's close to being able to help the team at some point.
"What we are going to do is trying to avoid these injury problems. We are building a very good strategy to get him to his best and then keep him fit."