Gyokeres stirred controversy by skipping pre-season training with Sporting last week amidst ongoing transfer negotiations. Sporting's president Frederico Varandas has confirmed that the club intends to penalise the forward.

Viktor Gyokeres has made a new push towards his transfer to Arsenal by moving out of his home in Lisbon. Arsenal remain in negotiations with Sporting CP over a deal for the 27-year-old but the Portuguese club have been standing firm over the structure of the add-on payments.

Negotiations between Arsenal and Portuguese side Sporting CP have progressed significantly in recent days, with the Gunners increasing their fixed offer to €63.5 million (£54m/$69m), plus €10 million (£8m/$11m) in performance-related bonuses.