John Mara, the nephew of the owner of the Giants,...

John Mara, the nephew of the owner of the Giants, has been charged with first-degree assault and second-degree breach of peace, police say. Credit: Fairfield Police Department

The 22-year-old nephew of New York Giants owner John Mara is facing arraignment on charges he hit a man in the head with a bottle during a New Year's Eve party.

The nephew, also named John Mara, is scheduled to appear Tuesday in Bridgeport Superior Court. His attorney, William Dow III, said Mara will plead not guilty to first-degree assault and breach of peace charges.

Police say a witness identified Mara as the person who committed the assault. Mara, who lives in Mount Kisko, was arrested in February.

An arrest affidavit says the victim, Philip Blackman, suffered life-threatening injuries that required immediate surgery.

First-degree assault carries a sentence of one to 20 years in prison.

A winter storm is expected to pummel LI as artic air settles in across the region. NewsdayTV meteorologist Geoff Bansen has the forecast. Credit: Newsday

Snow totals may be less across the South Shore A winter storm is expected to pummel LI as artic air settles in across the region. NewsdayTV meteorologist Geoff Bansen has the forecast.

A winter storm is expected to pummel LI as artic air settles in across the region. NewsdayTV meteorologist Geoff Bansen has the forecast. Credit: Newsday

Snow totals may be less across the South Shore A winter storm is expected to pummel LI as artic air settles in across the region. NewsdayTV meteorologist Geoff Bansen has the forecast.

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