Charles Leclerc topped a messy, rain-hit first practice session for Formula 1's Italian Grand Prix that included three red flags.
The Belgian GP winner kicked off Ferrari's home race with the fastest time after emerging on top from a flurry of improvements on slick tyres at the very end of FP1.
Leclerc headed the McLarens of Carlos Sainz and Lando Norris during a tricky, thrice-interrupted 90-minute session as drivers struggled to handle tricky conditions at Monza, where heavy rain hit overnight before conditions improved through the morning.
Initial flying laps were completed with full wet tyres but drivers switched to intermediates quite early.
The first red flag was caused when Kimi Raikkonen went off at Parabolica in his Alfa Romeo, just before the half-hour mark.
It took a short while to extract the Alfa and when the session resumed seven minutes later, it was halted again almost immediately.
Sergio Perez was the cause on this occasion as he lost control of his Racing Point exiting the Ascari chicane.
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