However, Perez's struggles are not directly related to the decision to replace him this weekend, with all F1 teams required to run a junior driver for at least two FP1 sessions throughout the season.
That is according to AutoHebdo, who are reporting Hadjar will replace Perez for FP1 at Silverstone.
Of course, this is not the first time the French driver will have driven an F1 car.
Hadjar also featured in FP1 for Red Bull at the 2023 Abu Dhabi Grand Prix, as well as at the Mexican Grand Prix for AlphaTauri earlier that same season.
The 19-year-old looks set to combine his FP1 outing with his usual Formula 2 responsibilities this weekend.