Gary Matthews Jr. launched a high-powered defense Saturday, retaining one of the top criminal defense attorneys and perhaps the most noted crisis management firm in Southern California to represent him amid allegations he received an illegal shipment of human growth hormone. Robert Shapiro, an attorney most famous for his work on O.J. Simpson's legal "dream team," said in a statement that he had met with the Angels' center fielder and was "firmly convinced he has not violated any laws or rules established by Major League Baseball."