Michael Schumacher will not be returning to F1 this season.

The 40-year-old German injured his neck during a superbike race in February, and has discovered that testing the F2007 has aggravated the injury.

It became apparent that his neck may be a problem during his first test, earlier this month, but seemed to ease off while he competed in two separate karting races last week.

He stepped back into the F2007 yesterday, but was in a lot of pain. The strain on his neck is too much for him to compete.

A statement on his website says that he was "Unfortunately, we did not manage to get a grip on the pain in the neck which occurred after the private F1 day in Muggello."

Luca Badoer, Ferrari test driver, will be standing in for the injured Felipe Massa.