The preliminary rounds are over, battle lines have been drawn and tonight the giants of European football resume hostilities.
Last season, Chelsea overcame a myriad of problems to finally deliver the trophy that Roman Abramovich had spent almost a decade, and hundreds of millions of pounds chasing.
Fans will hope this season's edition will be as exciting as those that came before it.
As we prepare for kickoff there are so many questions running through my head.
Is Jose Mourinho the man to finally bring home "La Decima"?
Will Man City's domestic success spur them to similar heights in Europe?
Can Chelsea, and Roberto Di Matteo repeat last season's success after a raft of big money signings?
How will Tito Vilanova adapt to life now that Barcelona has removed the word assistant from his job title?
Who will be this season's Apoel Nicosia, who emerge from nowhere to shock the big boys?
In this list I will break down the one glaring weakness that each potential contender will need to overcome to achieve the ultimate glory.