Frenchman Romain Grosjean will drive for Renault for the rest of the season
Renault have confirmed that Romain Grosjean will replace Nelson Piquet Jr at the European Grand Prix in Valencia.
Grosjean has also been chosen as the team's second driver for the remaining races of the season after Piquet Jr failed to pick up a point in 10 races.
"I'm very proud and looking forward to helping the team get the best results," said the 23-year-old Frenchman.
"Romain is an impressive young talent and we expect him to show his skills," said Renault team boss Flavio Briatore.
Grosjean will race alongside two-time world champion Fernando Alonso for Renault in Valencia at the weekend after getting the green light to replace Piquet Jr.
"It is an honour to be Fernando's team-mate and to make my Formula 1 debut alongside a double world champion is especially motivating," said Grosjean.
Briatore thanked the Brazilian for his efforts in a team statement but said the switch was evidence that the team would "take an aggressive approach to the second half of the season".
Renault were reinstated on Monday for this weekend's race in Valencia after successfully appealing a one-race ban they were given at the Hungary Grand Prix.
The French team were punished after allowing Fernando Alonso to leave the pit lane with a loose wheel, which then came off, at the Hungarian Grand Prix.
Alonso loses his front wheel
However, Alonso will now be able to race at his home grand prix this weekend after the ban was overturned.
Motorsport's governing body (FIA) will instead fine Renault £30,000.
The decision to allow Alonso and his new Renault team-mate to race is likely to delight the Spanish crowd.
"The reason there are two races in Spain is largely because of Fernando's involvement," said Renault team manager Steve Nielsen.
"People in Spain were not so interested in F1 until he got involved, and now it's a big sport there."