South Korea launched their campaign for a first Asian Cup since 1960 with a 3-1 win over Bahrain while fellow former champions Iraq beat Indonesia by the same scoreline Monday.
In the last game of the day, Jordan thrashed Malaysia 4-0 with Mahmoud Al-Mardi and Mousa Al-Tamari both scoring twice. Paris Saint-Germain's Lee Kang-in upstaged Son Heung-min with two goals for Jurgen Klinsmann's South Korea, who are among the favourites for the title in Qatar.
Lee has impressed at PSG since joining from Mallorca last summer and he got Klinsmann's side out of a spot of bother against a spirited Bahrain who equalised early in the second half.
The 22-year-old attacking midfielder showcased his sublime skills with a second-half brace to seal the three points for the Koreans.