Borussia Dortmund put seven past Celtic to claim their second win of the league phase. There were also important wins for Arsenal against Paris, and Leverkusen against Milan, while Brest, Inter, Barcelona and Manchester City recorded impressive victories.We hear from Arsenal goalscorer Kai Havertz, Brest hero Abdallah Sima and City boss Pep Guardiola. Plus, we look ahead to Wednesday’s action, hearing from Aston Villa's Ollie Watkins.