‘It would be absolutely bonkers’ – Alan Shearer warns Newcastle over selling Arsenal target Alexander Isak

Newcastle star Alexander Isak has been linked with Arsenal and Tottenham (Picture: Getty)Newcastle legend Alan Shearer has urged the club to do everything in their power to keep hold of Alexander Isak this summer, claiming it would be ‘absolutely bonkers’ to let the striker leave and join a rival.Despite being sidelined with two separate groin injuries, Isak, 24, is Newcastle’s top scorer with 23 goals this season and is widely regarded as one of the finest attackers in the Pre