Last update on. From the section Formula 1
Live coverage of the Mexican Grand Prix can be seen on 5 Live and BBC Sport.
Lewis Hamilton was led by Valtteri Bottas in a Mercedes one two ahead of Red Bull's Max Vertappen during the Mexico City Grand Prix's first practice.
Ferrari's Charles Leclerc, Verstappen's Team-mate Sergio Perez crashed into the final corner and suffered damage to their rear wings.
Hamilton was 0.076 seconds ahead of Bottas. Verstappen was 0.123secs behind the Finn.
Hamilton is 12 points ahead of Hamilton in the title race. Hamilton has five grand prix left.
Verstappen is the strong favourite to win on a track where Red Bull has excelled in recent years.
Due to the coronavirus pandemic in Mexico, there was no Mexico race last year. It is also the second long-haul race since the inception of Covid. The US Grand Prix in Austin, Texas took place two weeks ago.
The session was characterized by poor grip due to the dusty track. Cars threw up dust in the first laps, before the track started to clean up.
Perez, who had been spinning, recovered to be fourth fastest at the conclusion of the session. Leclerc was eighth, just behind Alpha Tauri's Pierre Gasly and the Ferrari of Carlos Sainz.
Alpine's Estebanocon Ocon and Aston Martins Sebastian Vettel completed the top 10.
Stewards will investigate Hamilton and Alfa Romeo's Kimi Riakkonen after the session, as they failed to return to the track in accordance with the rules after going off at first corner. He will not be penalized for a minor violation in practice sessions.
McLaren's Daniel Ricciardo, Lando Norris and Lando McLaren were in the 14th and 15th positions respectively. Williams was 17th.
Aston Martin's Lance Stroll and Alpha Tauri's Yuki Takuda will start at the back of Sunday's grid because of penalties for too many engine parts, both after they took new engines.