Frentzen waits on fitness go-ahead

The German was sidelined from the last round in Canada a fortnight ago with concussion, following two high speed crashes.

He was hoping to get the all clear on Thursday at the Nurburgring, but after a 40-minute examination, FIA Medical Delegate Sid Watkins said Frentzen will have to wait another few hours for his decision.

No reason was given for the delay, but Frentzen left the medical centre to go into a series of team briefings.

Frentzen, who confirmed on Thursday he is set to re-sign next year for a fourth season at Jordan, first suffered concussion in a Monaco Grand Prix smash a month ago.

Dizzy spells resulted in the German being sidelined from testing the following week in France. He attempted a comeback at the last round in Canada, but pulled out before qualifying after doctors advised him to miss the race following a second accident during Friday practice.

He flew back to Germany on race day for extra tests and more sophisticated scans. And after missing testing at Silverstone last week he travelled to the Nurburgring hoping to get the okay.

A team spokesman had earlier said they were "99 per cent certain" he would race.

"I had concussion in Montreal but didn't realise it at first," said Frentzen. "It wasn't until the evening and I got more and more headaches, so I decided not to race.

"Since then I have had some tests and fortunately it is only concussion. But Sid said I should take a rest and watch the testing at Silverstone from the pool."

Ricardo Zonta, who briefly dislocated his shoulder in a bizarre incident in the paddock on Thursday, is standing by in case the German is not allowed to compete.

The Brazilian, who is the team's official test driver, was said to be joking with mechanics when the incident happened. The shoulder was quickly reset.