Chelsea midfielder Ross Barkley is likely to miss the home game with Manchester United on Saturday through injury.
Barkley has established himself as a key player for Maurizio Sarri this season after initially underwhelming following his January move from Everton, while he also impressed in England's Nations League double-header against Croatia and Spain over the past week.
Sarri told a news conference: "As usual, after the national teams, there are some problems.
"We have the most serious with Ampadu. Then there is a little problem with [Callum] Hudson-Odoi and Barkley. But for Odoi and Barkley it's only a question of one to two days.
"The injury to Ampadu is serious, I don't know how much, I hope to recover him in a couple of weeks.
"[Antonio] Rudiger has done better in the last two days, like [Mateo] Kovacic, I think they will be okay to play."
Maurizio Sarri reports there are some injury problems following the internationals. The most serious is Ampadu, there are lesser problems for Hudson-Odoi and Barkley. October 19, 2018
