FIFA will wait to receive the referee's report from the World Cup match between Spain and Honduras before deciding whether to take any retrospective action against David Villa.
The new Barcelona recruit scored twice, hit the crossbar and missed a penalty against the Central Americans but also struck Honduras defender Emilio Izaguirre in the face as they waited for a free-kick to be taken towards the end of the first half.
Japanese referee Yuichi Nishimura took no action but FIFA will need to establish whether he would have booked or dismissed Villa if he had seen the incident.
A FIFA spokesman said: "At the moment we have no information on David Villa. We will wait for the referee's report before making any decisions.''
Villa told Spanish broadcaster Canal Plus: "It's not something that I am proud of. They're just instincts, in this case I wasn't expecting (Izaguirre) to tread on me.
"I was merely standing there and the reaction was to stick my arm out. I'll try in future to keep my cool.''
The sport's world governing body confirmed that South Africa's appeal against goalkeeper Itumeleng Khune's red card against Uruguay had been rejected, meaning he will be suspended for Tuesday's final Group A match against France.
Brazil coach Dunga has escaped censure for his comments to journalists following the match against Ivory Coast on Sunday night.
FIFA's disciplinary committee has studied footage of Dunga's post-match press conference and found no grounds to take any action.
Argentina coach Diego Maradona was banned for two months at the end of last year for comments he made to journalists following their final World Cup qualifier against Uruguay.