The Black Cats are now just one game away from Wembley having overcome a stubborn Dons side, with an own goal and strikes from Aiden McGeady and Charlie Wyke sealing victory.
But who impressed at stadium:mk, and who has work to do moving forward?
Scroll down and click through the pages as our chief football writer Phil Smith dishes out his merit marks from the clash:
Scroll down and click through the pages as our chief football writer Phil Smith dishes out his merit marks from the clash:
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