Like I said, Costa played well, but 15 minutes of good play does not = man of the match, unless you really do something special. I never said the goal came down to luck either, it was a very good finish, he got over the top of a quite awkward ball that seemed a little behind him, and put it into the corner beautifully.
FMD he mish*t it, it bounced over the goalie's head. He intended to volley it straight in. Total luck. The only thing about it he got right was the fact he was in position to take advantage of a very good cross. saying that I thought he played very well.