It wasn't the easiest of days for Ferrari and Sebastian Vettel as the USGOP got underway on Friday with the opening two free practice sessions.

Unfortunately while his SF70H was proving to be quick around the Circuit of the Americas, Seb's free practice was disrupted by a less-than perfect feeling with the car at the end of P2, just as he was about to start putting in some long runs ahead of Sunday's race.

In the end, the German driver was forced to spend most of his afternoon session in the garageโ€ฆ

โ€œIt was a complicated afternoonโ€ Seb commented โ€œand not an easy session, but the car is quick, so we don't need to worry too much about it. The only lap I had was the one with the Ultrasofts. Before that, I made a mistake taking too much risk and pushing too early. "

"The track was quite slippery and I lost the rear under braking. So, we lost a set of tires, and then again, towards the end of the session, I felt that something was not right with the car. So, we checked a couple of times and now we are looking at the car to see if we can find something. I need to find the rhythm tomorrow and make sure everything's in orderโ€.