Why Brazil wasn’t a pointless exercise for Piastri after restarting a lap down

Piastri was hit by a spinning Kevin Magnussen at the start and came into the pits to retire at the end of the first lap, but a red flag shown one tour later allowed McLaren the opportunity to repair his car and get him back out.

However, like fellow Australian Daniel Ricciardo, this meant he was a lap down at the resumption with no chance of recovering points, with the remaining distance becoming somewhat of an unexpected test session.

“After…