|F2 driver Nikita Mazepin gets to drive the latest Mercedes|
Barcelona F1 testing line-up for Tuesday and Wednesday of this week.
Under Formula 1 regulations teams are obliged to run young drivers for 50 per cent of the four in-season test days that take place each season.
Young drivers officially count as those who have competed in two or fewer grands prix, and in Bahrain Mercedes was able to draft in George Russell for one of those test days.
It left the team needing a different youngster – with Williams racer Russell no longer applicable – for one of the two days this week in Spain so last year’s GP3 Series runner-up Nikita Mazepin got the call.
Mercedes: Nikita Mazepin, Valtteri Bottas (days TBC)
Ferrari: Charles Leclerc, Sebastian Vettel* / Antonio Fuoco, Leclerc*
Red Bull: Pierre Gasly/Dan Ticktum
Renault: Nico Hulkenberg/Jack Aitken
Haas: Pietro Fittipaldi/Kevin Magnussen
McLaren: Carlos Sainz, Lando Norris/Sergio Sette Camara, Oliver Turvey (unconfirmed)
Racing Point: Nick Yelloly (both days), Sergio Perez*/Lance Stroll*
Alfa Romeo: Callum Ilott/Kimi Raikkonen
Toro Rosso: Daniil Kvyat/Alex Albon
Williams: Nicholas Latifi (both days)
*Pirelli tire testing