"It is crucial for India to win first two games. If that happens, the team will be in right spirit and will have the momentum their way. World Cup is a big tournament and a lot will depend on how the team starts," the former half back told reporters here.
India are to play Belgium (May 31) and England (June 2) in their opening games in Group A. Australia, Malaysia and Spain complete the group.
This would help the teams in strategising and assessing the technical faults in between the quarters, he said.
Singh believes that the skill levels of the present-day players have come down and overall the country lacks quality for each position in the team.
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"In our days, there was a tough competition for every spot and we had experts for every position. But now hockey has changed. Nobody knows whether they are playing back or forward. I feel this (expert players) is missing," he said.
"Strength-wise we can't beat the foreigners as they are very strong. They can even play the shots while standing. So skill is a must," he said.