The 23 - year - old was appointed captain of Dunga 's side in the aftermath of World Cup 2014 .
The 23 - year - old was was criticized for allowing his emotions to get the better of him at this summer 's Copa America .
The 23 - year - old was appointed captain of Dunga 's side in the aftermath of World Cup 2014 , but was criticized for allowing his emotions to get the better of him at this summer 's Copa America .