Dani Ceballos takes on Emi Martinez in the latest Episode of 'What Do You Know?' • Name all of the 2017/18 La Liga teams • Name the top 30 Champions League goalscorers • Name the players from Real Madrid v Getafe match #arsenal #ceballos #whatdoyouknow 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: po.st/YTArsenalPlayer Subscribe to the Official Arsenal YouTube Channel: arsn.al/Subscribe Follow us on Facebook: po.st/facebookyt Follow us on Twitter: po.st/twitteryt Follow us on Instagram: po.st/instagramyt Follow us on Soundcloud: 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 clos...