He originally said 9-10 times, then he claimed he had said 7-10 times, then he said he was just exaggerating for effect. Once or twice would be typical.
Can other teams ask that certain players be tested? I don't think so, but that would explain a lot.
The larger point remains that Arod (once again) simply should not have give that much information to the press. Say something bland and unoriginal, please.