He didn't get the ball. The Korean was getting ready to shoot the ball and he's kicked from behind and falls just before he shoots it. The Greek defender didn't even touch that ball.
It doesn't matter though. If the Koreans don't win then this "penalty" won't be a good excuse for them.
The Greeks are too big and slow for the Asians so far. They will lose if the match goes on like this. And despite being bigger, the Greeks are even losing the air duels. Doesn't look good for them right now.