Maradona was banned from Maracana
Diego said he was denied entry to the Group F clash at the Maracana stadium in Rio on Sunday. The 53-year-old World Cup winner has been working as a television pundit during the tournament but said he was unable to take a seat.
"I was not allowed to go in to the game," he told Argentine television. "So I had to return to the hotel to see the second half. I did everything I could but they would not let us in.
"Someone just said no, it could not happen, so I had to watch it on TV. Hopefully we will get this resolved because I want to go and see Argentina in several more games."
"It is one thing to not be able to go to a game, and another to not be allowed to go. When there is goodwill, you're allowed in but when there is ill will, it's better to forget it and head back to the hotel, which it's what we did."
A FIFA spokesperson said they had not been formally informed of any problem involving Maradona.
Argentina's next game is against Iran in Belo Horizonte on Saturday.