Jamie Carragher is concerned Romelu Lukaku is a ticking timebomb and Chelsea could soon lose patience with the star man.

The Sky Sports pundit believes the striker, 28, does not really fit in at Chelsea – just like he didn’t at Manchester United.

He wrote in The Telegraph: “When Romelu Lukaku signed for Chelsea, the consensus was that he was a different player to that which left Manchester United.

“Six months later, there is only one valid observation to make about his return to Stamford Bridge. He isn’t.

“All the talk about how a couple of years working with this weekend’s opponent, Antonio Conte, have elevated Lukaku’s game tactically has proven premature.

“Thomas Tuchel is managing the same striker who prompted Manchester United to run out of patience and sell him to Inter Milan.