Arsenal are now ready to trigger the release clause in Viktor Gyokeres’ contract with Sporting CP, despite the striker favouring a summer move to transfer rivals AC Milan. The 25-year-old is likely to be one of the most in-demand centre-forwards in the off-season after a sensational first campaign in Portugal. Gyokeres switched Coventry City for Sporting last July and has scored 33 goals in 38 fixtures. He also has 13 assists in 3,103 minutes yet. Gyokeres has further captivated clubs from across the continent by offering five of his goals in nine Europa League ties. The Stockholm native has a…