What to know

• Arsenal manager Mikel Arteta has made four changes to the starting line-up for the Premier League clash against Sunderland tonight.S1S2
• Arsenal manager Mikel Arteta did not hide his displeasure at centre referee John Brooks despite his side's dramatic 2-0 victory over AFC Sunderland.S3
• "I'm making it very clear publicly because it's for the game, it's not only for Arsenal, this cannot happen at this level." On David Raya's penalty save: "We should not talk about the save of the keeper, we should talk about what happened before that."S4