Chelsea midfielder N'Golo Kante has suffered a fresh setback in his fight to shake off his latest hamstring injury.
The France midfielder did not travel to Italy on Monday ahead of Chelsea's match against AC Milan in the Champions League after having what manager Graham Potter said was a "reaction in training."
Kante has been out of action since Aug. 14 when he sustained a hamstring problem in the 2-2 draw with Tottenham in the English Premier League.
The 31-year-old World Cup winner has been beset by hamstring and knee trouble in the last few years and might be a fitness doubt for France's title defense in Qatar next month.
"It's not ideal, disappointing for him and us, but we have to wait and see the extent of it, and go from there," Potter said.