Taking the advantage dating for amateurs and professionals
For example in 1984 European and South American (i.e, strong) countries were limited in what professional players they could use, and others weren't.
Extracted from: Internet Gambling in Nevada: Overview of Federal Law Affecting Assembly Bill 466, Courtesy of Liebert Publishing, Gambling Law Review On June 26, 1991, the Senate Judiciary Subcommittee on Patents, Copyrights and Trademarks held public hearings on Senate Bill 474. Specifically, PASPA makes it unlawful for: (1) a government entity  to sponsor, operate, advertise, promote, license, or authorize by law or compact, or(2) a person to sponsor, operate, advertise, promote, pursuant to the law or compact of a government entity, a lottery, sweepstakes, or other betting, gambling, or wagering scheme based, directly or indirectly (through the use of geographical references or otherwise), on one or more competitive games in which amateur or professional athletes participate, or are intended to participate, or on one or more performances of such athletes in such games.  The term "governmental entity" is defined generally as State and local governments, including organized described in 25 U.  As a result, Congress found that "[s]ports gambling is a national problem.  As documented in the Section-by-Section Analysis of the Senate Report, the Judiciary Committee made it clear that it had no desire to prohibit the lawful sports gambling schemes that were in operation when Senate Bill 474 was introduced. The harms it inflicts are felt beyond the borders of those States that sanction it."  Moreover, the Senate Judiciary Committee agreed with the testimony of "David Stern, commissioner for the National Basketball Association, that '[t]he interstate ramifications of sports betting are a compelling reason for federal legislation.'"  In light of these findings, it appears that Congress exercised its authority under the Commerce Clause  to enact the Professional and Amateur Sports Protection Act (PASPA) in 1992,  codified at 28 U.  Congress manifested this intent in section 3704 of PASPA by providing a grandfather provision for states that either had (1) operated a legalized sports wagering scheme prior to August 31, 1990, or (2) legalized sports wagering and such operations were conducted during the period of September 1, 1989, through October 2, 1991. Reading PASPA together with section 1084(b) of the Wire Act, sports wagering is effectively limited to Nevada.
As one author remarked, "in order to accept lawful Internet sports wagers on college or professional football, the casino must be located in Nevada and only accept Internet wagers from Nevada residents."  The United States Department of Justice strongly opposed the passage of PASPA based, in part, upon its belief that the legislation was a substantial intrusion on states' rights.  First, the Justice Department observed that Congress has historically left the decision on how to raise revenue to the states. For example WG Grace technically was an amateur cricket player but in fact was paid.