NFL Players Association lawyers argued Thursday that the league's collective bargaining agreement protects Michael Vick from the Atlanta Falcons' attempts to be refunded up to $16 million in bonus money. The Falcons argued the suspended Falcons quarterback knew he was in violation of the contract when he signed the $130 million deal in December 2004, and that he used proceeds from the deal to fund his dogfighting operation. A decision is expected by Oct. 12, said Stephen B. Burbank, the University of Pennsylvania law professor and special master who led the arbitration hearing.