NEW YORK (AP) — The NFL says former FBI director Robert S. Mueller III will conduct a probe into how the NFL handled evidence as it investigated domestic violence claims against former Ravens running back Ray Rice.

NFL spokesman Greg Aiello said in a statement that the investigation will be overseen by NFL owners John Mara of the New York Giants and Art Rooney of the Pittsburgh Steelers.

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NFL Commissioner Roger Goodell will grant Mueller access to all NFL records, the statement said.

The NFL’s announcement came after a law enforcement official told the AP on condition of anonymity that he sent a tape of Rice striking his then-fiancee at a casino to an NFL executive in April. Goodell has maintained that no one at the league had seen the tape prior to Monday, when it went viral online.

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