It is very sad to see something like this happen. It is also very easy for us to look at Shoaib and Asif and say that they took drugs knowingly. However, as was mentioned earlier, there are many athletes who have tested positive for high levels of nandrolone. Athletes can also have high levels from use of Creatine and the consumption of protein shakes. This of curse is all from the article about nandrolone on cricinfo.
I hope that something logical can explain why shoaib and asif tested positive. hopefully sample b will clear them. On the other hand, pakistan have pulled off an amazing win without their strike bowlers. Maybe the last few months has helped the team glue together better!