Jakarta, Qatar U-19 team are set to take on Indonesia on Sunday in Group A second match at 2018 AFC U-19 Championship, currently held in Indonesia.
Indonesia lead Group A with three points after defeating Chinese Taipei 3-1.
The first and second teams in each group qualify for the quarter-finals, which will be played on October 28-29.
The first four positions in the AFC U-19 Championship advance for the 2019 FIFA U-20 World Cup in Poland.
Qatar's coach Bruno Miguel started the training by explaining the players' mistakes in the UAE game, which the UAE won 2-1 in the first match in the group stage.
Miguel explained to the players several tactical options and urged them to adhere to the plan.
Qatar's game against Indonesia is a must win for the Qatari side in order to secure a position in the quarter-finals.
Source: Qatar Olympic Committee