Grant Wahl, 48, collapsed as extra time began in the Argentina-Netherlands game on Friday night.

Mr. Wahl's wife, Céline Gounder, wrote in a tweet that she was "completely in shock" and expressed her gratitude for the support from friends.

"On the night before the USA-Netherlands game, what had been a cold for the previous ten days morphed into something more severe, and I could feel my upper chest take on a new degree of pressure and discomfort.


"We are in contact with the US Embassy and the appropriate local authorities to make sure the body is returned in accordance with the family's wishes.