Chelsea's Brazilian-born Spanish striker Diego Costa (C) challenges Paris Saint-Germain's Brazilian defender Marquinhos and Paris Saint-Germain's Uruguayan forward Edinson Cavani (R) during the UEFA Champions League round of 16 football match between Paris Saint-Germain (PSG) and Chelsea at the Parc des Princes stadium in Paris on February 17, 2015. AFP PHOTO / FRANCK FIFE (Photo credit should read FRANCK FIFE/AFP via Getty Images)