Borussia Moenchengladbach scored twice in each half to crush visitors Schalke 044 4-1 on Saturday and pile more misery on the Royal Blues as their winless run in the league stretched to 25 successive matches.
Schalke, looking for their first victory since beating Gladbach 2-0 in January, kept their cool after Florian Neuhaus had put the hosts ahead, threading a shot through three defenders and keeper Frederik Ronnow in the 15th minute.
But in-form Gladbach, who host inter Milan in the Champions League on Tuesday, struck again before the break with Oscar Wendt finding far too much space on the left to beat Ronnow.
Marcus Thuram fired in on the rebound in the 52nd minute to make it 3-1 and kill off any Schalke resistance.
Hannes Wolf drilled in the fourth goal in the 80th after the Foals had missed a bagful of chances to add to their tally.