As captain, Cavenaghi led River Plate to achieve a sweep of all three international championships: 2014 Copa Sudamericana, 2015 Recopa Sudamericana and the 2015 Copa Libertadores. Included in these campaigns were two eliminations of arch-rival Boca Juniors, first in the Sudamericana and later in Libertadores. Winning the Copa Libertadores would make River Plate eligible to play in the 2015 FIFA Club World Cup in Japan representing CONMEBOL. He was the second-highest scorer in Argentina's Primera División 2015 with 11 goals.