Lewis Hamilton grabbed pole position for the Mexican Grand Prix, while teammate Nico Rosberg made a late improvement to secure an all-Mercedes front row.
Hamilton held provisional pole with 1:18.704 after his first run, but was marginally slower on his final flying lap.
However, his initial benchmark proved enough for pole, despite Rosberg improving significantly on his final run. The two drivers were separated by 0.254s.
As was the case in Austin, Red Bull occupied positions three and four on the grid, with Max Verstappen outqualifying teammate Daniel Ricciardo.
Nico Hulkenberg was arguably the driver of the day, qualifying his Force India a strong fifth.
Having shown impressive pace on Friday, Ferrari seemed off-colour in qualifying, with Kimi Raikkonen and Sebastian Vettel limited to sixth and seventh on the grid.
Both the Williams made it to Q3, with Valtteri Bottas and Felipe Massa finishing eighth and ninth respectively.
Austin star Carlos Sainz completed the top-10.
Home hero Sergio Perez will start only 12th, after failing to make the cut into the final leg of qualifying.
Pascal Wehrlein qualified in 16th place, the German putting Manor into Q2 for the fourth time this season.
Haas driver Romain Grosjean and Toro Rosso’s Daniil Kvyat were the biggest casualties of Q1, the latter session’s cut short with a technical issue.
by Rachit Thukral