Red Bull appeared to be the dominant team once again at the start of the season, with Max Verstappen claiming seven race victories in relatively quick succession.
However, the Dutchman is now without a win in eight, and both he and his Red Bull team are struggling to retain their crowns.
Red Bull's RB20 has provided its drivers with all kinds of problems, despite looking good during pre-season testing and, indeed, during the first few race weekends of the season.
Pre-season testing can be a hugely important barometer for how teams are shaping up ahead of the new season, and has taken place at the Bahrain International Circuit for the past four seasons.
It will be at the Sakhir circuit in pre-season where Hamilton will set his first official timed laps following his winter move from Mercedes where he spent 11 years of his career, winning six of his seven world championships.
In a statement, the FIA confirmed it would occur two weeks before the first race of the season: "FIA and Formula 1 have confirmed that Bahrain International Circuit will host three days of pre-season testing on 26, 27 and 28 February 2025 ahead of the FIA Formula One World Championship season, which will begin in Melbourne from 14-16 March.
"The 2025 Formula 1 season, the 75th anniversary year for the sport, will kick off in Australia, followed by China and Japan, and as part of the continued drive in sustainability with the sport on track to become Net Zero by 2030, a significant percentage of freight will remain at the Bahrain International Circuit for when F1 returns for the Bahrain Grand Prix for round four on 11-13 April."