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.
Paris Saint-Germain鈥檚 Lee Kang-in upstaged Son Heung-min with two goals for Jurgen Klinsmann鈥檚 South Korea, who are among the favorites for the title in Qatar.
Lee has impressed at PSG since joining from Mallorca last summer and he got Klinsmann鈥檚 side out of a spot of bother against a spirited Bahrain who equalized 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.
His man-of-the-match display was in stark contrast to skipper and Tottenham Hotspur striker Son.
He was guilty of two glaring misses and suffered the indignity of a late yellow card for diving in the Bahrain box.
Son is eyeing something 鈥渟pecial鈥� at his fourth Asian Cup but warned his side it will not come easy.
Hosts and reigning champions Qatar, Japan, Australia, Iran and 黑料社区 have all been touted as serious contenders.
鈥淲e have a fantastic team and we have amazingly talented players, but it鈥檚 all about commitment,鈥� Son said.
鈥淲e have an unbelievable team but we haven鈥檛 won it for 64 years so it means it鈥檚 quite long.
鈥淲e have just one aim 鈥� to make it special with this team and make it a special year.鈥�
After a slow start last year to his tenure, German legend Klinsmann has seen his South Korean side hit form at the right time.
As well as a red-hot Lee, they also boast Bayern Munich defender Kim Min-jae and Wolverhampton Wanderers forward Hwang Hee-chan, who has scored 10 times in the Premier League this season.
South Korea next face Jordan on Saturday in Group E.
In a Group D that includes hotly tipped Japan, Iraq were made to work by Indonesia before also running out 3-1 winners.
Iraq, the 2007 Asian champions, pummelled Indonesia 5-1 in Basra during World Cup qualifying in November and defeated coach Shin Tae-yong pledged before this game that his team would come back better.
His young Indonesia side, with eight of their starters born this century, gave a much better account of themselves in front of a raucous crowd of 16,532.
But Iraq repeatedly threatened to get behind Indonesia鈥檚 back line and on 16 minutes they did, Mohanad Ali barging his way through to blast into the top-right corner.
Indonesia were level 20 minutes later, the 19-year-old Marselino Ferdinan finishing emphatically at the far post.
But Osamah Rashid stroked home to ensure a 2-1 half-time lead for Iraq and 15 minutes from the end Aymen Hussein blasted in from close range to make the points safe.
While accepting that Iraq were the better side, Shin fumed afterwards about what he said was an offside during Iraq鈥檚 second goal.
鈥淭his is 100 percent offside. This kind of wrong decision-making from referees will decrease the image of the Asian Cup,鈥� he said.
Malaysia face Jordan in the final game of the day on Monday.