By Simon Mullock Jordan Henderson is set to be named the new captain of Ajax. The former Liverpool skipper will wear the armband for the first time when the Dutch club travel to Heerenveen on Sunday. It will only be Henderson’s second appearance since he quit Saudi Pro League Al Ettifaq after just six months in the Middle East. The 33-year-old England midfielder has been made captain because former Spurs winger Steven Bergwijn is sidelined by injury. But it is understood that Ajax coach John van ‘t Schip is keen to make the appointment more permanent such is the positive effect that Henderson …