Rojo, who was by no means proven a crimson card in his seven seasons in Manchester, tried to plead his case with referee Fernando Rapallini, however in reality gave the official little alternative with a late, rash problem when already on a reserving.
River went on to win the match 2-1 because of first-half objectives from Julian Alvarez, earlier than Carlos Zambrano scored a comfort objective for Boca in stoppage time.
The outcome returns River to the highest of the desk after 14 matches, with Boca down in ninth place.
Followers in Argentina have been allowed again into stadiums over the weekend for the primary time in 18 months as Covid-19 restrictions have been eased additional.
“Individuals have been detained for the sale of false tickets … and the Public Ministry of Buenos Aires metropolis goes to analyze whether or not the capability was exceeded,” a spokesperson for the workplace answerable for main occasions advised Reuters.
Argentine media estimated the attendance was someplace between 52,000 and 57,600, properly over half of the 72,000 capability of the Monummental, River’s residence floor.