George North fit for Wales World Cup warm-up matches after concussions

• Warren Gatland: ‘George has trained well but we’ve not done much contact’• Samson Lee a doubt for World Cup and Liam Williams is still injuredGeorge North is fit to play in Wales’s World Cup warm-up matches after missing the final 10 weeks of last season on the advice of a specialist having been concussed three times in less than five months.The Lions wing has taken part in Wales’s training camps in Switzerland and Qatar this month. The emphasis was more on conditioning than rugby, but when the squad, which returned from Doha on Wednesday, regathers on Sunday evening, the focus will be on th…