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River Plate defeats Boca Juniors as ex-Manchester United star Marcos Rojo sees red

(CNN) The hotly anticipated clash between River Plate and Boca Juniors -- known as the Superclasico -- didn't disappoint on Sunday, with Argentine football's biggest match producing no end of drama.

The game's main talking point came after only 16 minutes, when Boca's former Manchester United defender Marcos Rojo was sent off for picking up two yellow cards in the space of two minutes.

Rojo, who was never shown a red card in his seven seasons in Manchester, tried to plead his case with referee Fernando Rapallini, but in truth gave the official little choice with a late, rash challenge when already on a booking.

Marcos Rojo argues with the referee after being sent off.

River went on to win the match 2-1 thanks to first-half goals from Julian Alvarez, before Carlos Zambrano scored a consolation goal for Boca in stoppage time.

The result returns River to the top of the table after 14 matches, with Boca down in ninth place.

Fans in Argentina were allowed back into stadiums over the weekend for the first time in 18 months as Covid-19 restrictions were eased further.

Capacity was limited to 50% under coronavirus regulations, but Reuters reported that a judicial official confirmed an investigation would be launched after Argentine media said crowd numbers at the Superclasico exceeded the limit.

River Plate players celebrate in front of a packed stand.

"People were detained for the sale of false tickets ... and the Public Ministry of Buenos Aires city is going to investigate whether the capacity was exceeded," a spokesperson for the office in charge of major events told Reuters.

Argentine media estimated the attendance was somewhere between 52,000 and 57,600, well over half of the 72,000 capacity of the Monummental, River's home ground.

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