Perez slams own driving after poor Miami Friday

Sergio Perez was left lamenting his own driving after a poor Friday showing for the Formula 1 Miami Grand Prix.

Perez - who can top the drivers' standings for the first time in his career if he wins the race on Sunday - was only 11th and fourth in the two practice sessions.

Teammate and title rival Max Verstappen was fourth and first, respectively, holding nearly half-a-second advantage over the Mexican in the second session.

And speaking after the second 60-minute practice, Perez was quick to point the blame squarely at himself.

Perez critiques himself

"I haven't had the greatest of Fridays, and my lap was also pretty bad - I locked up on the final corner," he explained.

"So there's quite a bit more to come, and together with my driving, I'm not driving really well today.

"If I improve my driving, and get myself a bit more comfortable, I should be alright.

"It is these low grip conditions, especially with the things that we tried in FP1, but yeah, it is all small margins.

"The grip especially in FP1 felt like inter conditions, or wet-to-inter conditions.

"We were trying a few things with the mechanical balance, and learned quite a bit in the long run.

"I don't think we got a race [pace] because of the very few laps that we ended up doing out there, but we've got a good baseline."