Joe Cole explains why Chelsea should never have sold Kai Havertz to Arsenal

Joe Cole was sad to see Kai Havertz leave Stamford Bridge (Picture: Getty)Joe Cole believes Chelsea should never have sold ‘brilliant player’ Kai Havertz and says he has been a ‘great signing’ for Arsenal.Havertz swapped Stamford Bridge for the Emirates Stadium last summer in a deal worth £65million.The Germany international spent three years at Chelsea after joining from Bayer Leverkusen for £71m, scoring 19 goals in 91 Premier League appearances and netting