Michael SchumacherThe Williams team has opposed Ferrari's request to allow Michael Schumacher to test ahead of his return to Formula 1 at the European Grand Prix, AUTOSPORT reports.

Ferrari had asked all current teams, as well as the FIA, to allow Schumacher to have a one-day test with this year's F60 car to familiarize himself with the machine. Schumacher drove a two-year-old F2007 fitted with GP2 tires at the Mugello circuit last week, the German having not driven F1 machinery since last year.

The seven-time champion, replacing the injured Felipe Massa in the Valencia race later this month, retired from F1 competition at the end of 2006.

Williams said it is opposing Ferrari's request because it clearly contravenes the regulations, which state testing is not allowed during the season.

"While we welcome Michael Schumacher back to Formula 1, the fact is that any form of in-season circuit testing is strictly prohibited; a regulation clearly laid out by the FIA and adhered to by all of the teams," said team boss Frank Williams. "It was for this reason that Alguersuari, who drove an F1 car for the very first time in Hungary, did not have the opportunity to familiarize himself with the Toro Rosso before he made his race debut.

"Williams sees no distinction between Alguersuari's situation and Schumacher's and feels that any deviation from the rule would create a precedent for the future.

"In a similar situation, Williams would unhesitatingly use its current test driver. For the sake of consistency and fairness, therefore, we oppose Ferrari's proposal to test ahead of the European Grand Prix."

Ferrari needed the unanimous approval of all teams to get Schumacher to test, which means the German will not be able to try the F60 before the Valencia event.