McLaren have enjoyed their best race of the Formula One season with Lando Norris dominating Oscar Piastri for a one-two in the Miami Grand Prix sprint, but the Australian runner-up then really struggled when they mislaid their pace in qualifying.
After finishing seventh and with rain and storms forecast for Sunday's (Monday AEST) main race in which Mercedes' Kimi Antonelli will again start on pole, Piastri was left admitting after his mixed fortunes that it could well be a race into the unknown.
"If it is wet, that's going to obviously throw in a lot of spanners in the works, because no-one's really driven these cars in the rain, and no-one really knows what they're going to do," warned the Aussie.