* Premier League updates from the London derby at the Emirates * Arsenal set to sign 20-year-old Greek defender Mavropanos * And email scott.murray@theguardian.com with any thoughts 9.32pm GMT 90 MIN: “There’s only one team in London,” trill the visiting fans. On the Arsenal bench, Arsene Wenger hangs his head. He’s not had the breaks this week. There are four added minutes. Can the Gunners give their boss some late festive cheer? 9.30pm GMT 88 MIN: Before the corner is taken, Walcott comes on for Chambers. The set piece leads to Mustafi hitting a fierce volley from the edge of the box. It’s heading towards the top right, but clanks into Cahill’s arm. No penalty, because that arm was tucked into his body, and the defender had no time to react anyway. That would have been some goal. Continue reading...