Formula One team Renault announced on Tuesday that Frenchman Romain Grosjean would replace Nelson Piquet Jnr as their No 2 driver behind former world champion Fernando Alonso.

The Swiss-born, 23-year-old Grosjean had been the team's reserve driver during the first part of the season. The European GP at Valencia on August 23 will be his debut start in Formula One Grand Prix racing.