Bitter day for the champions
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THE DAY REPLAYED - All good things come to an end. This age-old proverb became a sad reality for defending champions USA on Sunday afternoon as they relinquished their FIFA U-20 Women's World Cup title following a defeat on penalties. Meanwhile there was joy for Nigeria and Korea Republic, who each booked their places in the last four for the very first time. Although the two nations are continents apart, their emotions at the final whistle were very much alike. FIFA.com rounds up all the action from the second day of quarter-finals.

Having reached at least the semi-finals of all four previous editions of the tournament, the USA will not be among the last four following a penalty shoot-out defeat against Nigeria in Augsburg. Jill Ellis' side were leading for the majority of the match, but after Helen Ukaonu's spectacular equaliser forced the tie into extra time, the stunned Americans finished second best in the ensuing shoot-out. USA star and top scorer Sydney Leroux had a particularly disappointing day, missing the decisive spot-kick as the west Africans ran out 4-2 winners.

Also into the semis for the very first time are Korea Republic. Goals from Lee Hyun-Young (2) and Ji So-Yun gave the east Asians a deserved 3-1 victory over Mexico - a match watched by a bumper 21,000 crowd in Dresden. They now face hosts Germany in the last four in Bochum on Thursday, while Nigeria will take on debutants Colombia on the same day in Bielefeld.

Quarter-final results
Saturday, 24 July
Sweden 0-2 Colombia
Germany 2-0 Korea DPR

Sunday, 25 July
USA 1-1 Nigeria (Nigeria win 4-2 on penalties)
Mexico 1-3 Korea Republic

Click on the links on the right for full reports on all these games.

Goal of the day
USA 1-1 Nigeria, Helen Ukaonu, 79 mins
With the USA leading 1-0 and keeper Bianca Henninger dealing comfortably with everything thrown at her, it looked like the end of the road for the ambitious Nigerians. However, with just over ten minutes left on the clock, up stepped Ukaonu to crash a searing drive into the top corner from all of 25 metres. It was to be the beginning of the end of the defending champions.

Memorable moments
Mexican delight
Las Aztecas
arrived at the Dresden World Cup Stadium to a red and green fanfare of traditional Mexican songs accompanied by all sorts of musical instruments. Robert Medina's side were clearly delighted by the reception, and although they were unable to overcome the South Koreans and reach the semi-finals, they can no doubt look forward to a similarly enthusiastic homecoming in a few days' time after qualifying for the knockout stages of the competition for the first time in their history.

The stat
3 - The USA have now been involved in three penalty shoot-outs in FIFA U-20 Women's World Cup history, and each time they have finished on the losing side. Ahead of today's match against Nigeria, the Americans were defeated on penalties by China PR in the semi-finals in Russia four years ago, just a few days before finishing on the losing side again as Brazil won the battle of nerves in the match for third place.

Have your say
Host nation and former champions Germany are now the hot favourites for the title, but can Maren Meinert's charges deliver victory to their fans on home turf, or will we witness a sensational maiden title from one of the underdogs? Click on ‘Add your comment’ and share your views with other FIFA.com users around the globe.