Sead Kolasinac will be an ‘absolute tank’ for Arsenal, says Theo Walcott

• ‘I see him in the gym every day and you can just tell he looks after himself’
• Kolasinac was a free transfer after his contract with Schalke 04 ended in JuneTheo Walcott believes Arsenal have signed an “animal” in the form of Sead Kolasinac and says the left-back can become one of the best defenders in the Premier League.Kolasinac, a free transfer signing after his contract at Schalke 04 expired in June, replaced the injured Per Mertesacker during the Communi