Injury knocks Schumacher’s comeback bid off track

RALF SCHUMACHER has seen his Formula One comeback delayed by another race after failing medical checks on his injured back.

Williams had expected Schumacher to return to the cockpit this week in testing at Monza, prior to an anticipated return in the Italian Grand Prix on September 12.

But the German was refused permission to test yesterday by his doctors after they examined the cracked vertebrae he suffered in an accident at Indianapolis in June.