Arsenal secured a dominant 4-1 victory over Tottenham Hotspur in a North London derby, with manager Mikel Arteta describing it as a 'cathartic release' after a challenging 72 hours for his Premier League leaders. Despite the loss, Tottenham's new coach Igor Tudor expressed optimism about the team's chances of avoiding relegation. Meanwhile, Kenyan police are investigating abhorrent racist abuse directed online at four Premier League footballers following matches last weekend, with the abuse targeting players after their respective games.