Former WBA world middleweight champ Rob Brant has filed a lawsuit against promoters Greg Cohen, Rapacz Boxing LLC and Top Rank Inc.

In the lawsuit, a copy of which was obtained by, Brant seeks damages in excess of $75,000 for Muhammad Ali Act violations, violation of Nevada regulations, alternate theory under Nevada regulations, fraud, fraud by omission, Nevada common law unjust enrichment and breach of good faith and fair dealing. The lawsuit was filed on Brant’s behalf Thursday in the United States District Court of Nevada.

Brant alleges in the lawsuit that co-promoters Greg Cohen and Cory Rapacz violated the Muhammad Ali Act by performing the functions of managers in their dealings with co-promoter Top Rank, the company founded by Bob Arum. Cohen and Rapacz, Brant’s co-promoters, entered a promotional agreement with Top Rank after Brant upset Japan’s Ryota Murata to win the WBA world middleweight title in October 2018 in Las Vegas.

In addition to damages, court costs and attorney fees, Brant seeks to void his promotional agreement with Cohen and Rapacz.

Brant’s lawsuit primarily alleges wrongdoing by Cohen and Rapacz. There are not substantive allegations against Top Rank in it.

Murata regained the WBA world 160-pound title from Brant in their rematch in July 2019 in Osaka, Japan. Murata stopped Brant in the second round of that bout.

The 30-year-old Brant (26-2, 18 KOs), a native of St. Paul, Minnesota, most recently defeated Ukraine’s Vitalii Kopylenko (28-3, 16 KOs) by technical knockout following five rounds of a 10-round bout August 22 in Las Vegas.

Cohen was sentenced to six months in prison late in 2019 following a conviction on one count of wire fraud, a federal offense that was not related to his dealings within the boxing business. That charge stemmed from a 2016 incident in which Cohen persuaded a victim to pay him $200,000 for a stock investment that was never made.

Cohen, who was released from prison eight months ago, eventually accepted a plea agreement. He agreed to repay the $200,000 and must adhere to three years of supervised release, in addition to performing 150 hours of community service by assisting victims of financial crimes.

Keith Idec is a senior writer/columnist for He can be reached on Twitter @Idecboxing.