"It's a shame, but we have to be realistic, we are leaders in a 'Group of Death'," commented the coach.
Argentina now have three points after two matches and now are second in Group C with three points, tied with Saudi Arabia and one point behind leaders Poland.
Brazil team doctor Rodrigo Lasmar said the extent of the injury would be known in 24-48 hours.
Germany looked in total command in the Group E clash but, with each missed chance, left the door open for Japan.
Saudi Arabia, the second-lowest ranked team in the tournament after Ghana, threw caution to the wind at the start of the second half, charging at Argentina's defence in front of a frenzied 88,012 crowd.
The Iranian players who met England in their first World Cup draw remained silent as the national anthem was played at the Khalifa International Stadium in Doha.
It has been estimated that the tiny oil-rich Gulf state has been spending $10 million each day since it won the right to hold the Cup more than a decade ago
The opening ceremony of the World Cup will take place on Nov. 20, ahead of the opening Group A match between hosts Qatar and Ecuador.
The official body of the 2022 World Cup later issued an apology to the broadcaster over the incident.
Anthony "Rumble" Johnson, who was suffering from a rare disorder of the immune system, died at the age of 38.
Novak Djokovic's team was caught mixing a "dodgy" drink and were seen trying to conceal it after realizing they were being filmed.
J.K. Diego feels that the Argentinians should also stand a good chance and it would be a fairy tale finish to star player Lionel Messi's international career
The Juventus midfielder lifted the trophy with his country in 2018, scoring the third goal in France's 4-2 final win over Croatia.
Sara Lee's sudden demise has shocked the wrestling community and her fans.
Barcelona defeated Mallorca 1-0, helped by Robert Lewandowski's goal.