China's best performance of day 14 was silver in the synchronised swimming team event
China dropped further behind the United States on the London Olympics medals table Friday after their first day without a win, as South Korea beat fierce rivals Japan to claim men's football bronze.
With two days of competition left, China were four behind the United States with 37 gold medals to 41, well short of the table-topping 51 they amassed at the Beijing Games in 2008.
China's best performance of day 14 was silver in the synchronised swimming team event, behind hot favourites Russia who completed their fourth consecutive clean sweep.
"We are still some distance from Russia. They will be our targets in the future for a long while," said China's coach Zhang Xiaolei.
"Maybe gold will be our long-term aim. Russia is our motivation. The Russians have ballet, so they have a stronger arts foundation. There are differences in speed and body condition."
Qiu Bo will expect to collect China's seventh diving gold medal in Saturday's 10m platform final, after leading Friday's qualifiers. British hope Tom Daley went through in 15th.
Hwang Kyung-Seon claimed South Korea's 15th gold medal of the Games in the women's under-67kg taekwondo, cementing fifth position on the medals table.
"It feels like flying. The other players prepared well, but I think I had a lot of luck," said Hwang, after taking South Korea's first gold of the taekwondo competition.
Meanwhile South Korea's men beat Japan 2-0 in the play-off for bronze to claim the country's first ever Olympic football medal -- and regional bragging rights.
Japan were bidding to emulate the Japanese team of 1968, who won bronze at the Mexico Games, but despite enjoying more possession, the Asian champions were twice unpicked by their opponents' clinical counter-attacks.
Arsenal striker Park Chu-Young and captain Koo Ja-Cheol scored either side of half-time, as the Taeguk Warriors claimed a measure of revenge for the senior side's penalty shoot-out loss to Japan at last year's Asian Cup.
"This is one of the most special moments for me and my team," said Koo.
"I'm very proud to be one of the first footballers to become medallists in Korean history."
South Korea's government had promised to spare the players military service if they won the bronze medal and the final whistle sparked wild celebrations from the victors, while Japan's players slumped to the turf in despair.
"I'm really upset about the outcome. We were able to play our football, but the result just didn't follow," said Japan striker Kensuke Nagai.
"But it's been a really good experience and I hope that we can achieve a better result next time."
Japan were also disappointed in the women's football final, when the world champions lost 2-1 to the United States on Thursday.