In August 2019, Mahrez missed the 2019 FA Community Shield over concerns about medicine he had been given by the Algerian national team. The Algerian FA described it as a "non-event". Mahrez later started in Manchester City's 5–0 opening day away win against West Ham United, being involved in all 5 of his side's goals, providing two assists for hat-trick scorer Raheem Sterling and winning a penalty for Sergio Agüero to eventually score after a retake.