LAHORE The Pakistan Cricket Board chairman Ijaz Butt has approved Mohammad Sami and Abdur Rehman as replacement injured Umar Gul and Yasir Arafat in the Pakistan T20 team for the World Twenty20 championship. Earlier, chief selector Mohsin Khan recommended the names of Mohammad Sami and rookie Mohammad Irfan as replacement for injured players but it was learnt that the ICC did not allow Irfan to be named as replacement because he was not among the provisional 30 players given by the PCB. To avoid getting into further controversy and shun players power, the PCB brought in Rehman because Pakistan T20 captain Shahid Afridi wanted to have Irfan in the team while young Shahzaib Hassans name to was also doing the rounds. But now the PCB has announced Sami and Rehman to replace the injured Umer Gul and Yasir Arafat for ICC World Twenty-20 and the names have been approved by Chairman PCB. Pakistan captain Shahid Afridi is hoping unheralded fast bowler Muhammad Irfan gets the go-ahead for the World Twenty20 Championship beginning in Guyana from April 30. Shahid Afridi feels the 6ft 8inch tall Irfan can be a surprise weapon for Pakistan in the tournament. But even after voting in favour of picking the 27-year-old left-arm pacer from Gaggu Mandi as a replacement for injured all-rounder Yasir Arafat, Afridi is unsure whether Irfan will be able to leave with the touring party April 24. His selection in the team is still subject to approval from the PCB chairman, Afridi said. We dont know whether we will get permission from the International Cricket Council (ICC) to allow him in the Twenty20 World Cup because we have selected him out of the 30-man preliminary squad. Then, we dont know whether he will get a British visa in time to leave with us. We dont even know whether this boy has a passport. Irfan is a surprise selection and made it to the 15-man squad after most fast bowlers in the preliminary squad got injured during what was a strenuous training camp that concluded at the National Cricket Academy Sunday. If he manages to catch a flight to the Caribbean in time, he would be the tallest fast bowler competing in the World Twenty20 Championship. Afridi himself faced Irfan and believes he has in him the potential to shine on the international stage. Ive faced him. He is really good. We can actually use him as a surprise package in the World Twenty20. He is quite fast but its his height that can really trouble batsmen. He extracts good bounce. We are hoping that he overcomes the few hurdles which are still there and is with us in the West Indies, he added.