What happened: George Russell and Hadjar made contact during the opening lap of the Mexico City Grand Prix. The collision sent Hadjar's Red Bull into a spin at Turn 6, forcing him down the order early in the race.

Why it matters: The incident compromised Red Bull's track position from the outset at Autodromo Hermanos Rodriguez. Russell recovered to finish fifth, while Charles Leclerc secured the race victory ahead of Max Verstappen.

What to watch: Formula 1 turns to the post-race stewards' review to assess whether any penalties will be issued for the opening-lap contact.