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Some jurors in Brooklyn federal court may need to temper any visions of sugarplums dancing in their heads this year.

Instead of enjoying presents and lounging by the fire the day after Christmas, they are likely to be stuck in deliberations in two of the biggest ongoing white-collar cases in New York.

In a case against former South American FIFA soccer officials accused of accepting bribes, a jury reached a partial verdict on Friday, convicting two former officials, but will be back in court next week to consider charges against a third defendant.

And for jurors deciding the case against Evan Greebel, a former law firm partner who advised pharmaceutical CEO Martin Shkreli, deliberations began Friday afternoon, after days-long closing arguments.

In the Greebel trial, each side's closing arguments stretched for several hours this week. Assistant U.S. Attorney Alixandra Smith spoke for more than four hours on Wednesday, while defense lawyers, including Gibson, Dunn & Crutcher partner Reed Brodsky and his co-counsel, Joshua Dubin, delivered closing arguments that were hours longer on Thursday.

Prosecutors claim Greebel, the former outside counsel to biopharmaceutical company Retrophin, and Shkreli, the company's onetime CEO, conspired to take Retrophin's assets to pay back angry hedge fund investors. The government also alleges Greebel, a former partner at Katten Muchin Rosenman, agreed to help Shkreli and others illegally control the trading and price of Retrophin stock. In a separate trial, Shkreli was convicted on three counts.

Although he is facing fewer counts than Shkreli, Greebel's trial has lasted more than two months, stretching far longer than Shkreli's trial, which lasted about five weeks.