Neymar limps off amidst Brazil's training session ahead of Copa America
The star forward was hit on the left knee by his Paris St-Germain teammate Thiago Silva and was attended to by medical staff before leaving the training session early.
It has not been a good 48 hours for Neymar, who lost the Brazil captaincy for the Copa America to veteran Dani Alves.
The decision by head coach Tite came after Neymar's altercation with a fan at the French Cup final on 27th April.
Brazil, who have not won a major trophy since they last won the Copa America in 2007, are drawn in Group A with Bolivia, Venezuela and Peru.
They will open their campaign on 14th June against Bolivia at the Estadio do Morumbi in Sao Paulo.