England captain Stuart Broad was pleased with the confidence shown by his side in their 116-run win over Afghanistan at the World Twenty20.
Luke Wright hit an unbeaten 99 before England restricted the Afghans to 80 to move into the last eight.
"There's a lot of energy and that's what you want for the three weeks you're out here," Broad told BBC Sport.
"We were fully prepared for this first game and we feel like we have a lot of confidence in this squad."
Wright, batting at number three and arriving at the crease with the score 0-1, needed three from the final ball of the innings to become the first England batsman to hit a Twenty20 international hundred, but could only manage two.
His 55-ball effort contained eight fours and six sixes, including 32 from one over bowled by Izatullah Dawlatzai, the joint second-highest in Twenty20 internationals.
"It was important for Luke to get some confidence in that position," said 26-year-old Broad.
"We know it's an important spot in T20 cricket and he adapted brilliantly today. We saw the ability he has to clear the ropes and how clean he can hit the ball."
England then reduced Afghanistan to 26-8 and looked set to bowl them out for lowest total in T20 internationals before Gulbodin Naib's 44 added some respectability to the scorecard.
Broad, part of the side that won the World T20 title in 2010, added: "The standards we set in the first 10 overs were magnificent. We took our catches, took our run-out chances and that's all you can ask of the players.
"T20 cricket is a confidence game. You saw that in 2010, our form going into that wasn't much to shout about but we gathered momentum and ended up winning it.
"I'm certainly not looking that far ahead yet but it's important that we started well."
Wright, 27, had not played international cricket for 15 months before being recalled for England's Twenty20 series against South Africa.
In his time away from the national side he has played T20 cricket in the Indian Premier League and the Australian Big Bash and said those experiences had helped him on his return to England duty.
"There's always a doubt that you might not come back, so scoring runs in Australia gave me belief that I could get back," said the Sussex all-rounder.
"I've played with so many internationals all around the world, so I'm always talking and learning. You can't buy that sort of experience.
"I'm loving being back and want to keep helping England win games."