What are the key matches to watch as the UEFA Champions League returns?

EXPLAINERAtletico vs Man United and Man City vs PSG headline the Champions League match day two action as the competition returns.The UEFA Champions League (UCL) 2026-27 enters its second round of matches this week, with 36 teams in action across Europe as clubs return to the elite football competition.After the first set of league fixtures, two-time title holders Paris Saint-Germain lead the points table with three points, followed by six-time champions Bayern Munich and five-time winners Barcelona, who also won their opening matches.Recommended Stories list of 4 itemslist 1 of 4Barcelona beat Getafe as Gordon scores his first goallist 2 of 4Lionel Messi returns from Argentina farewell as Inter Miami face DC Unitedlist 3 of 4Mohamed Salah sets Turkish Super Lig record for Trabzonsporlist 4 of 4Man City beat 10-man Liverpool 3-0 in first game after guilty verdictend of listThe competition’s league phase format, now in its third year, started in September and runs until January 2027. It will be followed by the knockout rounds, with the champions crowned in early June.Here’s all you need to know about this year’s competition:What is the Champions League?The Champions League is an ann...