Spaniard Andy Soucek will join the David Price Racing team to replace the injured Michael Herck at Monaco.
Herck missed the opening two rounds of the championship after breaking his hand in the GP2 Asia event in Bahrain.
He was replaced by Giacomo Ricci in Barcelona and Turkey, but Soucek will be driving the second DPR car in Monte Carlo.
Soucek had raced with the Super Nova Racing team in Istanbul, where he replaced the injured Christian Bakkerud.
He rejoins DPR, with whom he raced in the GP2 Asia Series, in a one-race deal.
"I'm looking forward to running with DPR in Monaco," said Soucek. "Thanks to my sponsors, Knight Frank, Interwetten, and L'Equip Asset Management, which is a new partner for me, I'm able to be on the grid and I'm hoping to bring them and DPR some good results.
"It's one of the most exciting, high-pressured, prestigious motor racing events and it's very special to be part of this.
"I scored three podiums in my last three races with the team so I'm hoping to continue that momentum. I raced here last year with DPR and it was a fairly strong weekend. I was fifth quickest in free practice, but made a mistake in qualifying.
"In the race I had an early incident which damaged the steering on my car, yet despite this I was able to keep running and the pace was there. Against this background, I'm feeling very confident.
"My focus will be on doing the best job I can and I'll be aiming to bring the team more valuable championship points."
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