Sebastian Vettel insisted championship rival Lewis Hamilton "brake-checked" him before their clash under the Safety Car during the Azerbaijan Grand Prix.
On lap 19, with Hamilton managing the pace in anticipation of the Safety Car returning to the pits and the race restarting, Vettel slammed into the back of his Mercedes at Turn 15. The damage was not big enough for major damage but incenced Vettel, who then drove alongside Hamilton, waved his right arm and drove into the side of the No.44 car.
Hamilton led away at the restart in question but after a restart was forced into a pit stop for a loose headrest, dropping him from the lead.