When Formula 1 action begins again on Friday at the beginning of Free Practice 1 at Zandvoort, two drivers will be under the microscope more than anyone else. The first will be Max Verstappen as he returns home for the Dutch Grand Prix and looks to end a four-race stint without a victory. The other driver is his Red Bull teammate Sergio Perez who narrowly survived being dropped by the team over the summer break. Christian Horner shared the news with Red Bull’s factory that Perez had been retained but the wording was carefully chosen. It turns out that Perez may only have four races left to sav…