Gary Lineker and Rio Ferdinand have both told Arsenal exactly why they should trigger Alexander Isak's £75million release clause at the end of the season.
The 22-year-old put pen to paper on a new long-term deal with Real Sociedad last summer, but that contract is understood to have a £75million clause included - meaning the Gunners could look to secure his signature at the end of the current campaign.
Isak's stock has risen over the past 12 months or so following a very impressive European Championships campaign with Sweden, where Arsenal were first registered with an interest in the Sociedad star.
