Head coach Wouter Vrancken says Hearts fringe players must "step up" amid a spate of midfield injuries. Laurent Mendy and Tomas Magnusson started Sunday's Scottish Premiership win over Dundee with Blair Spittal and Tom Renaud both out with long-term injuries. Renaud picked up an ankle problem in the recent Conference League play-off victory away to Rapid Vienna, while Spittal suffered a shin injury in Thursday's derby victory over Hibernian.