Williams reserve driver Nicholas Latifi will enjoy at Spa his third free practice of the season with the Grove-based outfit.
The Canadian - who currently stands second in the FIA Formula 2 Championship with DAMS and who previously drove for Williams in Montreal and at Paul Ricard - will attempt once again to make the most of the Friday morning session as he builds his case for a race seat with Williams in 2020.
"Nicholas joins us on Friday for his third FP1 session of the season and it will be interesting to get his impression of how the car has changed since his last outing in France, having seen some improvements in our performance in Budapest," said Williams race engineer Dave Robson.
"The Friday programme will involve understanding how best to adapt the car to suit Spa and understanding how to get the most from the Pirelli tyres in qualifying."
Latifi is looking forward to his busy Spa weekend and experiencing the thrills of driving Williams' FW42 aroundt the challenging Ardennes track.
"After the summer break I always have an extra urge to drive as it feels like a long time being out of the seat," said the 24-year-old charger.
"To have the opportunity to experience current Formula 1 cars at a track like Spa will be something special.
"I haven’t driven the FW42 since FP1 at the French Grand Prix and there has been a lot of development since then.
"It will be a good test for myself and for the team to get another opinion on the direction that the car is going in.
"As always, my goal remains the same, to maximise the mileage and to give the best possible feedback to help the team going into FP2."