The reason being Esteban was losing performance with the suspected PU issue and the team had confidence for Pierre to attack Ricciardo with DRS (and Ricciardo without DRS).
The driver of Car 63 attempted to overtake Car 81 on the outside into Turn 13
They will be effectively joined at the back of the grid by Alpine’s Esteban Ocon.
the good news is Formula 1 can expect better weather conditions on Saturday although it will still rain.