An attack on the Boca Juniors team bus by River Plate supporters has led to kick-off in the final of the Copa Libertadores being delayed.
Conmebol (the South American Football Association) says the second leg of the final, which stands at 2-2, has been postponed until 22:15 GMT – over two hours later than scheduled.
According to reports in Argentina, Boca players suffered cuts from the glass from broken windows and were also affected by the tear gas used by police.
A number of players, including Boca’s former Manchester City striker Carlos Tevez, were reportedly suffering from dizziness and vomiting and being treated by club doctors.
Footage apparently from inside the Boca dressing room showed the players groggy and disorientated.
Reports said Boca’s Pablo Perez and Gonzalo Lamardo had been taken by ambulance to hospital, the former with slivers of broken glass in his eyes and the latter a cut on his head.
The incident occurred as the team made its way to River Plate’s Monumental stadium in Buenos Aires.
Former Argentina striker Gabriel Batistuta branded the scenes “shameful”, saying on Twitter: “Another opportunity lost in front of the whole world that observes us, shameful, lamentable.”
Three years ago, a Copa Libertadores last-16 tie between River and Boca Juniors was abandoned at half-time after Boca fans attacked the River players with pepper spray in the tunnel.
Boca were kicked out of the competition, while River were given a bye into the quarter-finals.