BUENOS AIRES, ARGENTINA: The four players look back on the opening day's play at the Davis Cup by BNP Paribas World Group quarterfinal at Parque Roca. Marin Cilic drew first blood for Croatia after a marathon win over David Nalbandian, before Juan Martin del Potro restored order for the hosts with a straight sets victory against Ivo Karlovic.
Juan Martin del Potro (ARG) - 06/04/2012
Marin Cilic (CRO) - 06/04/2012
Captain Zeljko Krajan (CRO) - 06/04/2012
David Nalbandian (ARG) - 06/04/2012