Guillermo Daniel Rivarola (born April 28, 1967, in Villa Huidobro, Argentina) is an Argentine former footballer and currently is the Technical Director of Komets-River Plate.
Rivarola won 3 Primera Division Argentina with River Plate and 1 with San Lorenzo.
He had a short tenure in Mexico playing for Pachuca and for Monterrey.
[2] On December 21, 2010, Guillermo Rivarola was named Manager of Sporting Cristal[3] from Peruvian First Division League for the 2011 season.
On March 20, 2011, he was involved in a bitter dispute with fellow Argentine manager Marcelo Trobbiani of Cienciano after protesting to the referee in order to get him sent off.