George Russell followed up Canadian Grand Prix victory by topping first Austrian GP Formula 1 practice, but the most attention-grabbing aspect of the session was Formula 2 championship leader Alex Dunne going fourth on his F1 weekend debut.

McLaren junior Dunne stepped into Lando Norris's car for the session and on his soft-tyred qualification simulation he was just 0.069 seconds off his F1 points-leading team-mate Oscar Piastri as they took third and fourth.

Russell was quickest on both hard and soft tyres, ultimately topping the session with a 1m05.542s lap that was 0.065s ahead of Max Verstappen's Red Bull and 0.155s ahead of Piastri.

Russell's team-mate Kimi Antonelli had been close to him on hards but didn't string good laps together on softs and fell to 11th, while Yuki Tsunoda's struggles continued as he lapped 0.7s off team-mate Verstappen in 17th.

Ferrari made a muted start: its rookie Dino Beganovic couldn't emulate F2 rival Dunne's heroics as he went 18th in his first F1 practice appearance after Bahrain in April, and Lewis Hamilton was in and out of the pits early on having been informed of a gearbox problem, and had the lowest lap count of anyone on the way to an eventual ninth.

But Ferrari-powered Sauber made a bright start: Gabriel Bortoleto took sixth behind Pierre Gasly's Alpine.

Whoa Fernando