Russell beats Verstappen to end pre-season testing on top

F1 Grand Prix, GP Qatar, Losail International Circuit

Although reigning champion Max Verstappen led the afternoon session, a late push late saw Mercedes driver George Russell take over the lead on the third and final day of pre-season testing in Bahrain. F1Technical's senior writer Balazs Szabo reports on Day 3 of the three-day winter testing.

More to follow...