Sebastian Vettel will miss out on FP2 for the Belgian Grand Prix due to the need for a power unit change.
In FP1 at Spa-Francorchamps, Vettel had completed just 11 laps when he was forced back in to the pits and spent part of the end of the session inspecting the rear of the car with his mechanics.
At the start of FP2, Vettel's car was still in pieces in the garage and team principal Christian Horner confirmed that Red Bull was having to change the power unit, causing Vettel to miss out on the whole of the second session.
On Thursday, Vettel said it is unfair to compare him with team-mate Daniel Ricciardo
so far this season due to the number of reliability issues the reigning world champion has suffered.