The scheduled group test at Jerez next week is in doubt.

The Swiss publication Motorsport Aktuell reports that, following the resurfacing of the Spanish venue's layout, it is yet to be inspected and approved for official testing by the FIA's Charlie Whiting.

The report said Mugello, in Italy, has been earmarked as a back-up venue should Jerez not get the green light before the final in-season test of 2008 is scheduled to begin.

At Jerez on Tuesday, former formula one stalwart Riccardo Patrese is due to test Honda's 2007 car.

The invitation was extended to the 54-year-old Italian after he recently helped Rubens Barrichello mark the breaking of his long-standing record haul of 256 career grands prix.

Source: GMM