DOHA - Japan and South Korea's dominance of Asia's Olympic football qualifiers is at risk of coming undone as the clubs that have lured the nations' brightest talents to European shores stand in their way of securing tickets to Paris this summer.

Both countries have monopolised the continent's berths at a string of Olympic Games and they will be among the favourites to each claim one of the three guaranteed places on offer in France when the Under-23 Asian Cup kicks off in Doha on Monday.