PORTO ALEGRE, June 19 (Xinhua) -- Netherlands defender Bruno Martins Indi suffered a mild concussion during the World Cup match against Australia (Netherlands wins 3-2) on Wednesday, the Dutch football association KNVB stated after the match.

Martins Indi will have to stay at the Mae de Deus hospital in Porto Alegre and could not travel with the team to the training base in Rio de Janeiro. He will fly back on Thursday morning instead.

The defender, who played his 18th match for the Netherlands, fell on his head after a foul by Tim Cahill. He had to be substituted just before half-time.

Dutch head coach Louis van Gaal said afterwards that a concussion means at least one week out of action. In that case Martins Indi will definitely miss the third group match against Chile on Monday. This match will decide who will end as winners in Group B.