It looks to me as though Frankie kicked back his leg in anticipation of the defender coming through. Although there was contact, in my book it's still a dive what he did. He created contact, at midfield it's still a foul, right near the box it's a card.
Yes, it makes sense if that's what Arena thinks. But not good sense in my opinion. I don't believe that any player will hold back from running into the box for a 1 v 1 with the goalie. I don't think it was reckless AT ALL for Hejduk to make that run into the box. If it wasn't a dive, Arena's comments aren't fair in my opinion.
costa rica had a simulation call a few minutes before... I thought the ref was calling one against usa to even up the score.. still think hejduk was fouled, he isn't clever enough to pull off a simulation anyway