Dorian Boccolacci will return to Formula 2 with Trident at Silverstone this weekend, becoming the first diver to race for two teams this season.
French driver Boccolacci started the season with Campos Racing, but ran out of budget following the Red Bull Ring race and was replaced by Arjun Maini, who signed a two race deal.
Boccolacci finished sixth in GP3 with Trident in 2017, and returns to the team 12th in the standings with a best finish of fourth in F2 this year.
"I'm elated to get back to the Team Trident family after the remarkable results we scored together in the 2017 GP3 Series," said Boccolacci.
"There is mutual trust and respect with the team and I'm happy the conditions have been met to get back working together.
"I can't wait to be back on track and secure an important result at Silverstone."
Team manager Giacomo Ricci added: "I am very happy to announce that Dorian Boccolacci will return to Team Trident next weekend at Silverstone.
"We will do our best to assist our driver so that he can quickly find the right chemistry with our car and help the team to capture a prestigious result."
Boccolacci joins Ferrari Academy driver Giuliano Alesi at the team, replacing Ryan Tveter.
American Tveter had in turn taken over from Ralph Boschung for the Red Bull Ring, but as it stands rookie Tveter will remain at two F2 race starts this season.