Julian Alvarez shone as Manchester City came from behind to begin their Champions League defence with a comfortable 3-1 win over Red Star Belgrade.
Rafael Leao was guilty of an incredible miss which let Newcastle off the hook as their Champions League opener at AC Milan finished goalless.
Barcelona have been provisionally admitted to the Champions League for the coming season amid a UEFA investigation.
Pep Guardiola believes Manchester City have earned a place among the greats following their UEFA Champions League triumph.
Manchester City completed a historic treble with a 1-0 win over Inter Milan to clinch the club's maiden UEFA Champions League title in Istanbul on Saturday.
Lionel Messi will leave Paris St Germain at the end of the season, manager Christophe Galtier has confirmed.