A cup weekend that could define three managerial tenures

What do Stephen Robinson, David Gray and Neil McCann have in common?All three are under-fire Scottish Premiership managers whose teams feature in the last eight of the Premier Sports Cup - and each is in desperate need of a pressure-alleviating victory.At least one will not be afforded that reprieve on Saturday as McCann's Kilmarnock and Robinson's Aberdeen face off at Rugby Park (17:45 BST) after Gray's Hibernian have visited third-tier Ross County (15:00).Fan discontent risks intensifying arou