Uruguay and Liverpool striker Luis Suarez could face retrospective action from FIFA following a 2-0 defeat to Chile in Santiago.
Video footage shows a coming together between Suarez and the West Bromwich Albion defender Gonzalo Jara at a corner, after which Suarez appears to hit out in the direction of Jara's face.
Referee Nestor Pitana took no action and FIFA is still waiting on the official’s report, though, and will decide if any action is necessary after that.
In a statement on Wednesday, FIFA said: "We are still collecting all the post-match reports, since the officials have got 24 hours to send them. Based on the mentioned reports, FIFA will proceed accordingly."