Emre and Nolberto Solano join 10 other first-team players on the treatment table. If Sibierski fails to shake off a strain sustained at Ewood Park, Roeder could be without 13 key players for Wednesday's daunting trip to Chelsea.
And Chelsea boss Jose Mourinho is already banking the points.
Still smarting after Arsenal's draw at Stamford Bridge, and finding his side eight points adrift of Manchester United, he made it perfectly plain that a patched-up Newcastle side will be no competition for his star-studded side.
Talking after the match, he said: "Yes we are eight points behind them. But it will be five on Wednesday night".