Alvaro Parente has joined Meritus for the GP2 Asia Series rounds in Qatar this weekend.
The 24-year-old Portuguese, who won the opening race of the 2008 main series and finished eighth in the championship with Super Nova, will replace Earl Bamber alongside Marco Bonanomi at the Malaysian-based team for GP2's first night races.
"I'm very pleased to have the opportunity to drive for Meritus and to team up with Marco," said the former British F3 and World Series by Renault champion.
"The team's results have shaken established teams and I'll do my best to show what I can do this weekend. I will spend the next days learning the circuit and getting up to speed quickly and I hope to be fully ready for the first night race in Qatar."
Meritus team owner Peter Thompson added: "At relatively short notice he will certainly be thrown in at the deep end. We are fighting to stay in the fight with the top teams and for the Qatar races we have a strong driver line up that is hungry for success and will fight hard."