Umar Gul and Yasir Arafat have injured themselves and thus had to be replaced with Mohammad Sami and Abdur Rehman.
Pakistan on Monday named paceman Mohammad Sami and left-arm spinner Abdur Rehman as replacements for the World Twenty20 following confusion between the cricket administration and the selectors.
The selectors on Sunday had named Sami and paceman Mohammad Irfan as replacements for Umar Gul and Yasir Arafat, who were both ruled out of the World Twenty20 due to injuries.But the Pakistan Cricket Board (PCB) said selectors did not follow the procedure for replacements and on Monday named Rehman in place of Irfan.
"Sami and Rehman will replace Gul and Arafat and both the names have been approved by the PCB chairman Ijaz Butt," the PCB said.
Gul, who is the leading wicket-taker in Twenty20 cricket with 43 in 26 matches and also has the best figures of 5-6 against New Zealand in the World Twenty20 in England, hurt his shoulder while Araft injured his calf.Both were ruled out on Sunday.
Rehman, 30, has played two Tests, 11 one-day internationals and two Twenty20 for Pakistan.Unlucky Irfan has attracted attention as one of Pakistan's tallest cricketers and for his left-arm fast bowling, taking 43 wickets in 10 first-class matches after making his debut in the last season.
The West Indies host the third edition of the World Twenty20 from April 30-May 16. Pakistan, placed in Group A, faces Bangladesh on May 1 and Australia the following day.