Chelsea boss Rafa Benitez admits he's tried to curb David Luiz's reckless tackling.

Benitez was the first to try the centre half occasionally in midfield, a positional switch which has proved largely successful.

And he has sought to remove the recklessness from his tackling.

"We've talked about what he has to do and what I expect from him," said Benitez. "He knows what he has to do and he has more control."