Sauber F1's test and development driver Robin Frijns is to make a quick return to the GP2 Series and will be back with Hilmer Motorsport for the eighth weekend of the 2013 season which is being held at the historic Spa-Francorchamps circuit.

The 22-year-old Dutch driver, who is currently the reigning Formula Renault 3.5 Series champion, made his d?but with the team earlier this year at Bahrain and went on to claim a feature race win at the following round in Spain, also going on to also participate at Monaco, Silverstone and the Nuburgring.

However it appeared that Frijn's GP2 involvement had been prematurely curtailed when it was revealed that he was being replaced for the next round in Hungary by Britain's Adrian Quaife-Hobbs, the reigning AutoGP World Series champion who had been competing with MP Motorsport up to that point.

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At the time, Frijns had made no secret of the reason why he had been ousted from the #22 car: "So that was it then. No money no drive," Frijns posted on Twitter. "Winning championships is not enough these days!"

But now Frijns has been recalled to the squad - although with Quaife-Hobbs continuing with Hilmer this weekend at Spa, Frijns will now move to the sister #23 car which means that it's Britain's Jon Lancaster who will be the driver watching on from the sidelines.

"About to leave to Spa this weekend," Frijns posted on the social media site Twitter. "I will be back in the car again for Hilmer Motorsport!

"They missed me and wanted me to drive again," Frijns told the media on Wednesday, adding perhaps injudiciously: "They put Quaife-Hobbs in the car, but they were not very happy."

As for Lancaster, the Leeds-based driver himself confirmed the news on Twitter: "It's official, I'm not racing at Spa. A situation that was out of our hands. Thank you to Franz Hilmer for the opportunity. I loved it.

"Be careful with my car," he added in a tweet addressed to Frijns. "Its a Leeds Utd car!"

Lancaster is currently sixth in the drivers championship with 65 points after making his 2013 start at Spain where he finished on the feature race podium on his maiden outing. He went on to claim two sprint race wins at Silverstone and the Nurburgring, but had a dismal time of it at Hungary.

Frijns meanwhile has slipped to 12th in the drivers' standings with 45 points after his recent one weekend lay-off. Hilmer as a whole has fallen to sixth place in the team championship with 112 points after failing to finish any of their cars in the points in either of the races at the Hungaroring at the end of July before the August summer break.

Sims returns to GP3

Also making a return at Spa this weekend is Alexander Sims, who will replace Eric Lichtenstein in the Carlin GP3 squad this weekend at short notice. The 25-year-old from London will take over the #9 car putting him alongside team mates Nick Yelloly and Luis Sa Silva.

"It's been a bit of a last minutes dash but of course I'm delighted to join the team for this weekend," said Sims. "I've never raced with Carlin before but I have a good relationship with Trevor and was delighted when I was offered the opportunity to race this weekend."

Sims is more usually associated with Status GP, and he returned to that team for a one-off appearance at the Nurburging at the start of July sitting in for regular driver Adderly Fong who had a clash of other racing commitments.

"We're very pleased to welcome super-sub Alexander to the team this weekend," said Carlin team principal, Trevor Carlin. "It goes without saying that the team will work hard to help him familiarise himself with our car as quickly as possible."