Valtteri Bottas and Nico Hulkenberg are both set to start the Belgian Grand Prix this weekend from the back of the field, according to Auto Motor und Sport. The duo will each take heavy engine penalties, having gone over the allocated amount allowed for the season.
Drivers are permitted to use 3 MGU-Hs, turbochargers and combustion engines and 2 MGU-Ks, control elections and energy stores throughout the entire season. Bottas is set to run with a new engine, turbocharger and MGU-H, pushing his allocation for the season to 4.
In Hulkenberg's case, it is believed that the German will run with a completely fresh power unit. With Spa being a power-dependant circuit, both Mercedes and Renault see the race as an opportunity to limit the damage of taking a heavy grid penalty.