Mercedes has confirmed Kimi Antonelli will start from the back of the grid at the Italian Grand Prix after exceeding his power unit allowance. The 19-year-old title favourite is set for a full power unit switch, with team principal Toto Wolff dismissing any notion of preferential treatment due to Monza being his home race. Russell is also set for a grid drop, though the team has yet to decide where the Briton will swap power units.