Brazilian Luiz Razia completes Marussia line-up for 2013
Brazilian Luiz Razia will drive his maiden season in Formula 1 for the Marussia team in 2013.
The 23-year-old, runner-up in GP2 in 2012, partners Englishman Max Chilton at the back-of-the-grid team.
Razia was reserve driver in Marussia's debut season in 2010 before spending two years in the GP2 feeder series.
Team boss John Booth said: "He is a very quick and tenacious driver. Along with Max, we are fielding a young but incredibly ambitious pairing."
Razia said: "The past two seasons in GP2 have been all about proving I have what it takes and that I'm ready.
"This coming season will be all about rewarding the faith the team have shown in me.
"This is an important year for Marussia in terms of maintaining the momentum from a very positive 2012 season. I look forward to making a valuable contribution to that."
Marussia's announcement leaves only one vacant seat on the F1 grid for 2013 - that alongside Scot Paul di Resta at Force India.
The favourite for that spot is Frenchman Jules Bianchi, a member of the Ferrari driver academy, with German Adrian Sutil, who raced for the team from 2007 to 2011, also in the frame.
Bruno Senna, who raced for Williams last year, announced on Tuesday that he would not be in F1 in 2013 and has signed to race in the World Endurance Championship with Aston Martin.