Vieira criticized Crystal Palace for playing “with the handbrake on” in the Foxes tie
The Eagles have won just two of their opening nine Premier League games despite some promising performances, although Saturday lunchtime at the King Power Stadium did not impress the Palace manager.
Vieira bemoaned his side’s “really flat” performance, especially in the second half, and urged his players to take more risks in attack.
“We didn’t play to hurt them, [we] they played without taking risks, with the handbrake on, which makes them comfortable – even more so in the second half,” he told BBC Sport.
Vieira added: “We have to keep believing a little more, trust each other a little more and play to score goals.
“I think we have the quality to do it, but today’s game didn’t reflect the quality we’ve shown so far, so of course disappointed, but we played against a good team and to get a point away from home is the positive side of playing today.”
Still bottom of the table, Leicester boss Brendan Rodgers has expressed his confidence the team will avoid trouble despite calls from fans for him to be sacked following another winless outing for the King Power.
He said: “It’s just going to be a season where, I’ve always felt after our summer, we’re going to have to fight this season.
“The players are doing that and gradually we have to get better results as the season goes on.”