Alan Shearer has insisted Newcastle should rebuff Arsenal's attempts to sign Alexander Isak. The Swedish striker has been a key man for the Magpies this season and capped a man of the match performance by scoring against the Gunners in Tuesday's Carabao Cup semi-final first leg . That was the 25-year-old's 15th goal of the campaign and he also laid on the assist for Anthony Gordon's strike. His performances have helped Newcastle to recover from a tough start to climb to fifth in the Premier