Middlesbrough Middlesbrough's Australian World Cup heroes are major doubts.Keeper Mark Schwarzer, who made two saves in the penalty shoot-out against Uruguay which earned his country a place in next summer's World Cup Finals, picked up a slight shoulder problem, while striker Mark Viduka stayed behind in Australia to consult a specialist over a recurrence of an Achilles problem.Skipper Gareth Southgate is back after four weeks out with a groin injury, while Ugo Ehiogu could make his first appearance at the Riverside since September after shaking off a similar problem.