The Copa Libertadores last 16 second leg between Boca Juniors and River Plate was suspended after pepper spray was used on the visitors.
The second leg of Boca Juniors' round of 16 Copa Libertadores tie against archrivals River Plate has been suspended after visiting players appeared to be sprayed by pepper spray or tear gas.
As River's squad returned to the field at Boca's La Bombonera following halftime Thursday, around six players emerged from the tunnel with tears streaming from their eyes.
Leonardo Ponzio, Leonel Vangioni, Ramiro Funes Mori and Sebastian Driussi were among those affected with Ponzio shown repeatedly dousing his face and eyes with a water bottle.