A former Baldwin High School basketball star Thursday admitted crashing a car while under the influence of alcohol and drugs, seriously injuring an 18-year-old passenger.

Keira Corbin, 21, of Wyandanch, will get a three-year prison sentence under a plea deal struck in Nassau County Court.

The athlete, who led her high school team to victory in the 2011 Long Island Class AA Championship, pleaded guilty to second-degree assault, reckless driving and driving while impaired by drugs and alcohol.

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Authorities said the 5:20 a.m. crash on March 1, 2014 happened when Corbin lost control of a borrowed Chevrolet Cruze while trying to exit the Meadowbrook State Parkway in North Merrick to get on the Southern State Parkway.

Acting District Attorney Madeline Singas said in a statement Corbin had been using a cellphone and driving 111 mph, which "made this terrible crash inevitable" when combined with alcohol and drug use.

In court, Corbin admitted using marijuana, being drunk and having Xanax in her system at the time of the crash.

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Prosecutors said the car rolled and a guardrail cut open its roof, with the ragged edges causing a serious scalp injury and severing part of an ear of the 18-year-old woman, one of two backseat passengers.

The other passenger had minor injuries, according to prosecutors, who said Corbin asked people who stopped to help to not call police.

Defense attorney Monte Malik Chandler of Hempstead said Corbin attends Farmingdale State College, works in retail and has apologized to the victims.

He said while the former star athlete "clearly made some serious mistakes," he believed "the damage that was done is not commensurate with the plea offer that she was given."