Max Verstappen and Esteban Ocon have been summed to the Formula 1 stewards over the post-race altercation prompted by their Brazilian Grand Prix collision.
Red Bull driver Verstappen was leading the race when pushed into a spin by Ocon's Force India, which was trying to unlap itself having pitted for new supersoft tyres.
The incident cost Verstappen victory, and afterwards he confronted Ocon while they were being weighed by the FIA.
Verstappen was filmed pushing Ocon several times while they argued.
Both drivers must now appear before the stewards at Interlagos to assess whether either contravened article 12.1.1 of the FIA International Sporting Code.
That regulation covers any "act prejudicial to the interests of any competition or to the interests of motorsport generally".
When asked if he expects to receive a penalty for the altercation, Verstappen told TV crews: "No.
"We are all passionate about the sport, right? It would be odd if I would shake his hand.
"I'm a winner. To get taken out like that, and to get a stupid response from his side as well, I was not happy about that."
When it was put to him that some people felt he went too far by shoving Ocon, he added: "I don't care what those people say."
Verstappen finished the race second behind Lewis Hamilton, while Ocon was given a 10-second stop/go penalty for causing the collision and ended up 15th.