Joaquin devastated by penalty miss
The Betis star could hardly walk at the end of the game, suffering from an apparent thigh injury, but was brave enough to step up to take a penalty in the shoot-out.
However, with Korean keeper Lee Woon-jae moving off his line, Joaquin's powder-puff effort from the spot was easily saved.
After the game, Joaquin said: "It hurts my heart to think about it.
"Now I feel impotent.
"I would like to turn back time and ensure that it goes in.
"I was thinking about where I was going to put the ball, I always make one move to see where the keeper is going to commit, but he has held his position and I have hit it where he can stop it.
"After all the work of the team, so much effort, the disallowed goals....
"I have given everything, I had the dream to play in these quarters, I have played my heart out, but the world is not finished here, these things happen and it is necessary to confront them, in spite of my rage."