Rejuvenated fast bowler Mohammad Amir said he has "unfinished work" at next month's T20 World Cup, 15 years after dazzling as a teenager when Pakistan last lifted the trophy.

The 32-year-old, who was jailed for spot-fixing in 2011, came out of retirement last month and is grateful to have another crack at the World Cup.

"It's a great feeling to be playing for Pakistan again," Amir told AFP by phone from Lahore this week ahead of the tournament in the United States and the West Indies beginning on June 2.