Sergio Perez is fighting for his future in Formula 1 at the Mexican Grand Prix and his qualifying performance is unlikely to make his cause any better. The Mexican complained about an issue with his brakes during practice and that did not get resolved in time for qualifying, as it persisted during his timed efforts. Red Bull sent him out on soft tyres to start with but he was over a second off the pace of Verstappen, who was comfortably in the top ten places. One final attempt saw Perez only qualify in P18 behind Oscar Piastri, marking it two shock exits in the first part of the session. READ …