Lance Stroll has been replaced in Friday's (today's) final morning session of testing due to illness after Aston Martin released an official team statement.
Stroll had been due to take part in the first four hours of running in Bahrain, with Fernando Alonso then set to take over as the teams called time on the three days of testing.
Lance Stroll was not well enough to take part in Friday morning's session in Bahrain
Lance Stroll Health Update
Taking to social media, they said: "An update on our F1 Testing lineup for today. Overnight Lance wasn’t feeling 100 per cent.
"Fernando will now drive the car this morning and we’ll confirm our lineup for this afternoon in due course."
As teams are only allowed to have one car in action during pre-season testing, the team later confirmed that Stroll will be back in action for the afternoon session to conclude the test for the team.
However, Stroll could only complete 24 laps in the final pre-season testing session of 2025, and was replaced once again by his team-mate midway through the afternoon session, with the team officially confirming that Stroll was still feeling unwell.