The Atlanta Falcons have asked their troubled quarterback Michael Vick to return more than $16 million in bonus money in a case that will be argued in a hearing Thursday, according to sources with knowledge of the case. The Falcons contend that Vick should return the money because his recent guilty plea to federal dogfighting charges puts him in violation of the 10-year, $130 million contract he signed in December 2004. But the NFL Players Association will argue in the hearing before the NFL's special master, University of Pennsylvania Law School professor Stephen Burbank, that Vick has already earned the bonus money. "I don't expect it will go beyond a day," Burbank told The Associated Press.