Del Potro played in the Davis Cup Final, with the title on the line and looking to fulfill his childhood dream. He lost in the second rubber to David Ferrer, despite being two sets to one up, eventually losing in a pulsating five-set contest in a match lasting over five hours. With his country down 2–1, del Potro needed to beat Rafael Nadal in the reverse singles to keep the tie going. Del Potro dominated the first set, but could not keep his level up and lost in four sets. For the third time in six years, Argentina lost in the finals of the Davis Cup World Group, this time 3–1.