Nine rookies will take part in Formula 1's first practice session at the Mexican Grand Prix this weekend, with every team bar Sauber fielding a rookie.
Each Formula 1 team needs to satisfy the rule of running a ‘rookie’ driver twice in each of its cars during a season.
Rookies are defined as any driver with no more than one grand prix start to their name. So Kimi Antonelli (Mercedes) Isack Hadjar (Racing Bulls) and Gabriel Bortoleto (Sauber) all ticked off the rookie requirements for their cars in Australia and China.
As Ollie Bearman (Haas) already started three grands prix last year, he doesn't count, while Alpine rookie Jack Doohan could have counted for Australia because he made his F1 debut in Abu Dhabi last year, but Alpine already planned to use rookies for four sessions.
In Mexico nine of the teams are fielding rookie drivers with only Sauber, which has alread completed its requirements, fielding a complete regular driver line-up.
Current formula 2 drivers Luke Browning, Jak Crawford and Arvid Lindblad will drive for Williams, Aston Martin and Red Bull respectively.
Crawford will be making his F1 FP1 debut, while Browning will get his second F1 practice outing of the year for Williams, as will Lindblad.
IndyCar race winner Pato O'Ward will be in the McLaren and Ferrari sportscar ace Antonio Fuoco will make his FP1 debut.
At Racing Bulls, Super Formula championship contender Ayumu Iwasa will make his second F1 weekend appearance of the year, having done FP1 for Red Bull in Bahrain.
Mercedes is using its reserve driver Fred Vesti for the second time this year to complete its 2025 requirements, while Ryo Hirakawa will make his third FP1 start for Haas in Mexico, before making a fourth in Abu Dhabi.
2025 FP1 rookie runs confirmed so far
McLaren (3)
Alex Dunne - Austria, Italy
Pato O'Ward - Mexico
Ferrari (3)
Dino Beganovic - Bahrain, Austria
Antonio Fuoco - Mexico
Red Bull (3)
Ayumu Iwasa - Bahrain
Arvid Lindblad - Britain, Mexico
Mercedes (4)
Kimi Antonelli - Australia, China
Frederick Vesti - Bahrain, Mexico
Aston Martin (3)
Felipe Drugovich - Bahrain, Hungary
Jak Crawford - Mexico
Alpine (4)
Jack Doohan - Australia (not counted)
Paul Aron - x3 (Italy, Mexico + 1 TBC track)
Ryo Hirakawa - Japan
Haas (4)
Ryo Hirakawa - Bahrain, Spain, Mexico, Abu Dhabi
Racing Bulls (4)
Isack Hadjar - Australia, China
Ayumu Iwasa - Mexico, Abu Dhabi
Williams (3)
Luke Browning - Bahrain, Mexico
Victor Martins - Spain
Sauber (4)
Gabriel Bortoleto - Australia, China
Paul Aron - Britain and Hungary
