Brazil head coach Tite admitted he is worried about the fitness of Neymar after the Paris Saint-Germain forward damaged the same metatarsal he broke last February.
Neymar limped out of PSG's Coupe de France victory over Strasbourg on Wednesday following a robust challenge from Moataz Zemzemi.
Subsequent tests revealed the 26-year-old had suffered a "painful recurrence" of the foot problem that kept him out for almost three months in 2018.
The extent of his latest injury remains uncertain, with Tite keeping his fingers crossed that his talisman will only be sidelined for a short period.
"I followed the press, I know the comments, I have the same information, I'm worried for Neymar. We have a scheduled trip to have contact with the players in Europe", Tite told reporters at the Copa América draw, where hosts Brazil were placed in a group with Bolivia, Venezuela and Peru.