A revised version of the Muhammad Ali American Boxing Revival Act has been introduced in the U.S. Senate by Ted Cruz and Jacky Rosen after an earlier version passed the House of Representatives in March.

The TKO-backed proposal would allow the creation of Unified Boxing Organizations, enabling promotional entities to operate their own rankings, titles and events under one system. Critics fear the model could give companies such as Zuffa Boxing too much control over fighters and the wider sport.

The Senate bill introduces several changes designed to strengthen boxer protections. A fighter’s first promotional contract would be limited to three years, while later agreements could not exceed six years.

Boxers would also be allowed to negotiate with rival promoters or organizations during the final 90 days of an existing deal, although they could not sign a new contract until the original agreement expires.

The revised proposal adds greater transparency requirements for rankings, including public disclosure of voting officials, ranking criteria, bylaws and appeals procedures. It also retains restrictions intended to separate Unified Boxing Organizations from fighter management interests.

The bill must now pass through the Senate Commerce Committee and the full Senate before being reconciled with the House version. If Congress does not approve the legislation before its current term ends in January, the process would have to begin again.

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