Wasps top Premiership after Jimmy Gopperth has final say at Newcastle

• Newcastle 30-34 Wasps• Wasps get bonus-point win despite leaking two tries in first four minutesThe former Newcastle player Jimmy Gopperth emerged from the replacements’ bench at Kingston Park to plunder the try bonus score in a 34-30 win that ensured Wasps would go into the new year on top of the Premiership table.In a pulsating see-saw contest played out in front of a 8,730 crowd, Newcastle’s biggest home gate of the season, Wasps only needed a single point to overtake Saracens, who are away to Leicester on New Year’s Day, and Gopperth’s 46th-minute try guaranteed Dai Young’s side would at…