"Diego is one of the clinical strikers in Europe and would be a welcome addition to any team. I think PSG have made clear their intent over the last three or four seasons – that we only add the best players.
"Diego and myself have had our clashes. On the field he is physical and confrontational – he will get in your face. That is part of his game. But off the field he is one of the nicest guys you can meet."
Chelsea clash with PSG in the Champions League last 16 in February and Luiz said: "I welcome two big battles with Diego, but both games will end with a hug."