Vito Mannone has lifted the lid on the 'tension inside the training ground' between Lehmann and Almunia...
Jordan Pickford will deputise but David Moyes says Sunderland will try to sign another goalkeeper.
Goalkeeper taken to hospital on Tuesday amid fears he could have fractured his arm.
Vito Mannone will play ahead of Jordan Pickford, while Allardyce wants a "defender and an attacking player".
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