Thomas Tuchel believes Romelu Lukaku's struggles at Chelsea show similarities to previous forward flops at the club, including Fernando Torres and Andriy Shevchenko.
Much has been made about Lukaku managing just seven touches in 90 minutes against Crystal Palace, the worst on record since that data was collected from 2003, and asked to pinpoint the Belgian's problem, Tuchel was dumbfounded for an answer.
'What can I do? I don't know,' he said.
'Well, we have to deal with it. The data is out there and speaks the language that he wasn't in our game.