August 25, 2018

Pierre Gasly on track in the Toro Rosso

© Mark Thompson/Getty Images

August 25, 2018

Brendon Hartley on track in the Toro Rosso

© Dan Mullan/Getty Images

August 25, 2018

Brendon Hartley on track in the Toro Rosso

© Mark Thompson/Getty Images

August 25, 2018

Pierre Gasly walks through the paddock

© Charles Coates/Getty Images