Valentin Costache did score the winner in this match for Dinamo Bucharest, so you don't have to feel too bad for him.
That said, instead of capitalizing on an epic error from Viitorul goalkeeper Arpad Tordai, Costache said "hold my beer" and made an equally bad error, thumping the ball into the post instead of into the goal.
Again, he scored the winner, so don't feel bad for him. That's a frightful mistake though.