coach Ronald Koeman of Southampton during the pre-season friendly match between Feyenoord and Southampton FC on July 23, 2015 at the Kuip stadium in Rotterdam, The Netherlands.(Photo by VI Images via Getty Images)

coach Ronald Koeman of Southampton during the pre-season friendly match between Feyenoord and Southampton FC on July 23, 2015 at the Kuip stadium in Rotterdam, The Netherlands.(Photo by VI Images via Getty Images)