Hartley is up and running in Austin!

Brendon Hartley was already on site at COTA yesterday, enjoying an early arrival for his F1 baptism of fire with Toro Rosso this weekend.

The Kiwi tweeted a pic of himself, donned in his new Red Bull kit, pointing to his pitlane ID sign with a self-mocking caption.

"Yup, that's my ugly mug above the Toro Rosso garage.."