Liam Lawson arrives in Mexico looking to build on a fine return at the US Grand Prix. Lawson finished ninth in Austin, his first appearance since replacing Daniel Ricciardo at RB. That would have been an impressive result regardless of where he’d qualified. But Lawson came from the back of the grid after a series of engine penalties, executing a hard-medium counterstrategy to perfection. This has significantly increased the pressure on Sergio Perez ahead of his home race. Perez produced the kind of performance Red Bull have become used to, qualifying 10th and finishing seventh while his teamma…