Brazilian superstar Neymar suffered a back injury against Colombia on Friday.
He is expected to be out for the remainder of the World Cup with a fractured vertebra.
There has been an outpouring of support and Neymar released a video thanking people for their kind words and affection.
View this video on YouTube
On Saturday, YouTube user Manuel Tascon uploaded a video of a group of Argentinian fans appearing to mock Neymar's injury.
View this video on YouTube
The video shows a group of fans in Brasília singing and waving a plastic spinal column.
Argentina fans are ruthless. Pictured here holding a spine to mock Neymar. #ARGvBEL #ARGBEL
Their chant translates to "Ole, ole, ole, ola, here we have the spine of Neymar!"
Argentina coach Alejandro Sabella has expressed regret about Neymar's injury.
