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 t
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