What is a driveshaft hub and how was it affected in Leclerc crash?

Ferrari reported that the left driveshaft hub was broken on Leclerc’s car, which the team only discovered following Leclerc’s reconnaissance lap to the grid as the Monegasque driver struggled with drive.
This had not been part of Ferrari’s pre-race checks, and so the underlying issue remained undiscovered until the team finally produced a full autopsy of the gearbox and associated components …Keep reading