EXETER have agreed new terms with American internationals Gabby Cantorna, Jennine Duncan, Rachel Johnson and Kate Zackary for next season.The quartet were part of the club’s sixth-placed finish in their inaugural Premier 15’s campaign.Fly-half Cantorna, 25, was the club’s top pointsscorer while back rows Zackery, 31, and Johnson, 30, shared 13 tries. Winger Duncan, 27, played twice after suffering a serious hamstring injury.“All of them have been in the USA training camp for a month and are in great shape,” said Exeter head coach Susie Appl...