Striker Romelu Lukaku, who returned to Chelsea for a club record £97.5m in August, was "not happy" with his bit-part role under Blues boss Thomas Tuchel earlier this season.
The 28-year-old also told Sky Sport Italia in an interview recorded several weeks ago but aired on Thursday that he wanted to go back to Inter Milan in the near future.
"I'm not happy with the situation, this is normal," said Lukaku at the time. "But I am a worker and I must not give up."
The Belgian has scored seven goals in 18 club appearances since he re-joined Chelsea this summer.