Lawyers for Gregory Craig, a former Skadden, Arps, Slate, Meagher & Flom partner, denied on Tuesday that he disseminated to U.S. government officials a Skadden report commissioned by the government of Ukraine, rejecting that he was required to register as a foreign agent.

The attorneys' statement appears to push back on recent press reports and court filings about Paul Manafort's work with Skadden. The law firm was hired to write a 2012 report that evaluated the trial of Yulia Tymoshenko, the political rival of one of Paul Manafort's top clients, former Ukrainian President Viktor Yanukovych. Craig oversaw that controversial report.

Manafort himself pleaded guilty on Friday to two conspiracy counts, including for failing to register as a foreign agent under the Foreign Agents Registration Act.