His goal was like something from It’s A Knockout, but the Arsenal captain showed signs of recovery from an injury-wrecked campaign We’re back, baby. Welcome to the content zone. And yes, we did actually go away for a bit. Seriously. Check back. We really did. In the lead-up to this Premier League opener, Sky Sports had been trailing the fact it will show a total of 1,500 live games this season. Lay these end-to-end and that adds up to about 3,000 hours, or 125 whole days doing nothing but watch…