Beleg said:
I am interested in knowing whether biomechanical analysis has proven if Murali's standard version of 'doosara' is within the acceptable range or not.
Opinions are a dime a dozen.
Lab testing has proven that he can bowl the doosra legally, i.e. within 15 degree tolerance level - plenty of links available and not hard to find.
Issue is whether he uses modified action, as created by biomechanics under controlled conditions, or whether he has reverted to "old" action where he definitely threw.
Doosra with "old" action was much harder to detect as it was delivered from same position on crease with same pace on ball, etc.
"New" action, when first used, resulted in substantial change to run-up angle (as it had to be delivered from closer to stumps) and reduced pace on ball, i.e. element of surprise was lost as easier to detect
Given that Murali is definitely a genius when it comes to "delivering" a cricket ball, it's not beyond the realms of possibility that he's found a way to conceal a legal doosra.
In any event, it's probably a dead issue as:
a. the political climate is hardly ripe for taking a stand on the issue; and
b. most people are beyond caring