The 2022 FIFA World Cup is inching closer and the general sense is that South America's leading duo are galloping ahead of a pack of strong European contenders who all have question marks hovering over them.Brazil and Argentina will be motivated to end 20 years without a non-European winner, while reigning champions France, Euro 2020 finalists England and Luis Enrique's Spain will also be keen to have a say by the time 18 December rolls around.Netherlands under Louis van Gaal have been impressive, Belgium's fading golden generation will hope to make a mark and Germany can never be counted out in spite of putting in their least Teutonic World Cup performance in living memory during the 2018 edition.Even in the midst of continued instability for Cristiano Ronaldo at club level, Portugal have a strong supporting cast, while Luka Modric remains evergreen four years on from leading Croatia to the final.But outside of those teams, who are the dark horses that perhaps won't be in contention to win it all but have potential to make a deep run to the latter stages?Let's take a look at the quartet of Denmark, Senegal, Serbia and Uruguay who have the potential to reach at least the quarter-finals in Qatar.In many ways, the Danes were the team of Euro 2020 such was the way in which they galvanised themselves in the wake of Christian Eriksen's cardiac arrest during the match against Finland.Without their totemic talisman, Kasper Hjulmand's team rallied on the way to a semi-final finish in which they were unfortunate to be knocked out by England.The team spirit remains and, coupled with the joyous return of Eriksen to the squad, has seen Denmark maintain an impressive momentum over the past 18 months.Since losing 4-2 to the