Russell only managed eighth in Saturday’s qualifying after struggling on his final lap in Q3.It did look like Mercedes would be contenders for pole after surging up the order in Q2.However, it didn’t come together for Mercedes as Lewis Hamilton could only set the sixth-fastest time of the session.Reflecting on qualifying in Mexico, Russell blamed poor tyre preparation for Mercedes’ lacklustre Q3 performance.“We tried something slightly different with the tyres to get a bit more performance and just under hit it, the tyres were too cold and weren’t working,” he said. “It’s really frustrating this weekend because it’s been so up and…