5 things you need to know Monday

1. Adrian Peterson lawsuit expected to be filed
The NFL Players Association plans to file a lawsuit against the league Monday in a federal court in Minnesota on behalf of banished Vikings star Adrian Peterson, a person with knowledge of the situation told Paste BN Sports. Peterson, 29, pleaded no contest last month to a misdemeanor reckless assault charge for injuring his 4-year-old son in May while disciplining the boy with a wooden switch.
2. Obamacare enrollment deadline for Jan. 1 coverage
The federal HealthCare.gov website and state sites seem to be working well enough to get people enrolled or re-enrolled by midnight Monday if they want coverage to be effective on Jan. 1. The final deadline for enrollment for coverage in 2015 — and to avoid penalties at tax time in 2016 for not having insurance — is Feb. 15. The Obama administration is encouraging those who signed up on the exchanges last year to go back and revisit their policies this year, projecting that about 70% of people could find a cheaper policy.
3. Priest guilty of stealing from Detroit charity to be sentenced
The Rev. Timothy Kane, a Catholic priest convicted of embezzling money from the Angel Fund charity for Detroit's poor, will be sentenced Monday by Wayne County Circuit Court Judge Bruce Morrow. Kane, 58, was convicted in October of six felony counts related to defrauding the Archdiocesan inner-city charitable program.
4. Hostages flee Sydney cafe during standoff
Five people escaped from a cafe in downtown Sydney, Australia, on Monday, where at least one armed person held an undisclosed number of hostages. As the standoff entered its 10th hour, New South Wales state police Commissioner Andrew Scipione said police did not know the gunman's motivation. "We have not yet confirmed it is a terrorism-related event," Scipione said. "We're dealing with a hostage situation with an armed offender."
5. UPS braces for the busiest day in its history
UPS projects Monday will be the single busiest day in the company's history for its processing centers, the peak of a holiday season in which it estimates it will handle about 585 million packages. The company insists it is prepared for the spike in demand after facing an avalanche of criticism for failing to deliver thousands of packages by Christmas Eve last year.
And, the essentials:
Weather: Two storm systems will bring snow and rain across the Northern Plains and the South, and showers along the West Coast.
Stocks: U.S. stock futures rose Monday.
Here's what to watch on TV tonight:

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Contributing: Associated Press