Newcastle United, playing at Schalke's Veltins Arena, conceded three goals in 18 first-half minutes on the way to a 3-1 loss to Spanish side Malaga.
Sergi Darder opened the scoring in the 25th minute with a long-range strike that went in off the woodwork.
Samu Castillejo volleyed in at the far post in the 32nd minute and the same man then netted a deflected effort towards the end of the half before Gabriel Obertan fired in a consolation on the hour.
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