LAHORE The World Anti-Doping Agency (WADA) has taken samples of four Pakistani cricketers in London for dope tests, it was learnt on Wednesday. The players whose urine samples were taken by WADA for tests include skipper Shahid Afridi, Muhammad Yousuf, Kamran Akmal and Shoaib Akhtar. The team, already battling spot-fixing allegations, have now been picked by WADA. Pakistan players Shoaib Akhtar and Mohammad Asif had tested positive for a banned substance ahead of the 2007 Champions Trophy in India in the tests conducted by the PCB.