See what happened when Sokratis Papastathopoulos took on Dinos Mavropanos in the latest episode of 'What do you know?' The rules are simple: 1. 10 seconds to answer each question 2. Keep giving correct answers until your opponent gets three answers wrong 3. Whoever can go the longest without providing three wrong answers is the winner Let the battle commence! For more match action, highlights and training videos, make sure you become a digital member and sign up to Arsenal Player. It's FREE and is the Home of the Game: http://po.st/YTArsenalPlayer Subscribe to the Official Arsenal YouTube Channel: http://arsn.al/Subscribe Follow us on Facebook: http://po.st/facebookyt Follow us on Twitter: http://po.st/twitteryt Follow us on Instagram: http://po.st/instagramyt Follow us on Soundcloud: http://po.st/soundcloudyt This is the Official YouTube channel for Arsenal Football Club. This channel will aim to showcase the personality of Arsenal Football Club and give fans more of an insight into what it's like to be at this fantastic club. This channel will look behind the scenes and get closer to the likes of Mesut Ozil, Pierre-Emerick Aubameyang, Henrikh Mkhitaryan, Alexandre Lacazette, Bernd Leno, Danny Welbeck, Granit Xhaka, Hector Bellerin, Petr Cech, Aaron Ramsey and more. ABOUT ARSENAL FC Arsenal Football Club were formed in 1886. They have amassed 13 League titles, 13 FA Cups and many other major trophies since then. Their greatest players include: Thierry Henry, Dennis Bergkamp, Tony Adams, Ian Wright, Robert Pires, Liam Brady, Patrick Vieira, Cliff Bastin and Charlie George.