Despite their physical and at times heated exchanges during the Champions League clash catching the eye, David Luiz has revealed that Chelsea star Diego Costa is a good friend of his and a 'top guy.' The former Chelsea defender scored the equaliser for the 10 men of Paris Saint-Germain to send the tie into extra-time before Thiago Silva scored late on to send the French side through. The Costa and Luiz duel was highly talked about but the Brazilian has played down the intent of their clashes. David Luiz (right) revealed Chelsea star Diego Costa is a good friend and called the fiery striker a 'top guy'PSG knocked Chelsea out of the Champions League on away goalsDavid Luiz revealed that Diego Costa is a friend despite their clashesChelsea forward Costa was involved in a number of heated exchangesLuiz says Costa is 'top guy' and played down the physical battleClick here for all the latest Chelsea news
The Brazilian has apologised for breaking his promise of not celebrating if he scored against _.