Sergio Perez enters his home race under immense pressure.Although the Red Bull driver arrives in P2 in the drivers' standings, and with a contract for 2024, his seat next season is in question.Rumours suggest he must cling onto the runner-up spot, behind teammate Max Verstappen, to avoid getting the chop.He is sure to be boosted by a vociferous fan-base who will cheer his every move.Will Verstappen's domination continue in Mexico or could McLaren - or even Mercedes - have a day to remember?How to watch Mexico City GP for free onlineThe Austrian broadcasters ORF or Servus have free Mexico City…