They are regularly pitted against each other by fans and pundits alike, but extravagantly gifted duo Lionel Messi and Cristiano Ronaldo have so much in common, writes Graham Hunter.
GNK Dinamo Zagreb may lie bottom of Group A, but, as Elvir Islamović reports, they will be brimming with confidence when they host Paris Saint-Germain FC on Wednesday.
The players who go on to become great coaches are not necessarily the ones who stand out on the pitch: who among today's crop has what it takes to thrive in the dugout?
Arsenal FC's best teams under Arsène Wenger have not unnaturally been famed for their French influence but Simon Hart says a Spanish flavour is now key to the Gunners.
AC Milan's current travails have largely been down to a lack of goals, but the form of Stephan El Shaarawy and the imminent return of Pato could be about to change that.
LOSC Lille may have the infrastructure in place to succeed but they look to be chasing their tail following the high-profile departure of Eden Hazard during the close season.
You do not have to have skin as thick as rhino hide to be a UEFA Champions League coach but, as Champions Matchday editor Paul Simpson explains, it probably helps.
FC Spartak Moskva went into the international break off the back of two costly defeats and a mini-injury crisis but Richard van Poortvliet says they can return in much stronger shape.
After their surprise defeat by FC BATE Borisov, Steffen Potter highlights the importance of experienced midfielder Bastian Schweinsteiger to FC Bayern München and Germany.
From Málaga CF's fast start to Zlatan Ibrahimović's record-breaking goal and Christian Abbiati's heroic display, UEFA.com asks: What are your highlights of the group stage so far?