Lewis Hamilton will start Sunday's Belgian Grand Prix from the pit lane with a new power unit after qualifying only 16th, Ferrari said.

Four drivers will start the Belgian Grand Prix from the pit lane after multiple power unit penalties and setup changes.Carlos Sainz is the highest-placed driver from the qualifying order who has made changes,

Lewis Hamilton, Andrea Kimi Antonelli and Fernando Alonso have all taken the opportunity to add a new power unit to their F1 2025 engine pool at Spa after tough qualifying