Details are still emerging from Tom Brady's 10-hour marathon appeal hearing with NFL commissioner Roger Goodell in New York City on Tuesday.

But sources told ESPN that "Tom Brady's greatest ally [Tuesday] was Tom Brady" and that he came across genuinely in "an A+ performance."

Of course, the New England Patriots quarterback is fighting the four-game suspension the league levied on him last month, as part of the heavy sanctions the NFL slapped on the franchise for their role in the Deflategate scandal.

Brady reportedly claimed that evidence presented in the Wells Report didn't prove that he violated league rules and that his four-game suspension is harsher than similar violations.

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Brady, accompanied by his lawyer, Jeffrey Kessler, also received a sworn affidavit from Patriots owner Bob Kraft, who's in Israel. 

There's currently no timetable on when Goodell will reach his final decision and possibly reduce Brady's suspension or uphold it, but Kessler thought Tuesday's appeal went well.

"I think we put in a very compelling case," Kessler said.

If Brady's suspension isn't overturned or reduced, this case could wind up going to court.

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(Photo: AP Photo/Mark Lennihan)