#3 Point to prove
Last season, Tottenham could not qualify from the group consisting of, no disrespect to them, but the likes of Monaco, Bayer Leverkusen. But this season, they qualified from the group of death and topping the group above Real Madrid. This season they have better experience in this competition.
Likewise, Guardiola's first season in charge of Manchester City was underwhelming but this season, we all know how they are performing. Liverpool have qualified for knockout rounds after many years. Manchester United have winning mentality of Jose Mourinho and are fresh of winning the Europa League.
Chelsea are the current champions of the English Premier League and have Antonio Conte as their manager who is a certified winner wherever he goes. The winning experience helps a lot in this competition as seen in the match between PSG and Real Madrid where PSG the new kid in town was heavily outplayed by their Spanish veterans in this competition.