Chelsea striker Romelu Lukaku says manager Thomas Tuchel's system doesn't suit him.

In an explosive interview with Sky Sport Italia, believed to have been held a few weeks ago, Lukaku vented his frustrations with his current responsibilities under Tuchel and repeatedly admitted his unhappiness with "the situation" at Stamford Bridge.

He said: "Physically I'm fine, even better than before. After two years in Italy, in which I worked a lot at Inter with trainers and nutritionists, I am physically fine. But I'm not happy with the situation, this is normal.

"I think the coach has chosen to play with another system, I just have to not give up and continue to work and be a professional.

"I am not happy with the situation, but I am a worker and I must not give up."

The first quotes from Lukaku's bombshell interview have emerged just days after speaking with ESPN Brasil where he demanded more "clarity" from Tuchel due to uncertainty over his role in the Chelsea attack.