In my playing days when Liverpool were up against Chelsea so often, for so many of the big prizes, there was an old rule about how you dealt with Didier Drogba - in my view the striker who changed the way we think about that position.

The rule was: don’t rile Didier. When he was angry he seemed to play even better. If his temper was up he was like the Hulk, ploughing through everything in his path, impossible to knock off the ball, a real force of nature. Looking back I think Drogba changed perceptions about what a striker could do and the way in which a team could be shaped. Many times he did the job of two players and it allowed his managers at Chelsea to change the team around him.

It begs the question as to what his latest successor Alvaro Morata will be remembered for at the club and, as things stand, I find it hard to believe he has a future there. The notion that a player coming from outside the Premier League needs one season to settle in has always felt wrong to me – the best hit the ground running. Morata scored 15 last season as Chelsea’s then new record signing, one fewer goal across all competitions than Drogba did in his first season, but Morata has made much less impact.