Aldon Smith cut a plea deal in his DUI case on Thursday morning, TMZ Sports has learned ... and the ex-NFL star is now facing prison time over it.
The San Mateo County District Attorney tells us ... Smith agreed at a hearing in Northern California to enter a plea of nolo contendere to a felony charge of drunk driving causing injury.
In exchange, the court agreed it would not impose a sentence on him higher than 16 months in state prison.
Aldon Smith DUI Arrest, Prosecutors Say He Had Weed In Pocket & Empty Booze Bottles
The D.A. noted probation and a county jail sentence are also on the table for Smith following the plea agreement.
The 33-year-old is slated to learn his fate at a sentencing hearing in March.
As we reported, Smith was initially hit with two felony DUI charges in the case back in December 2021 ... after he was accused of driving drunk and slamming his GMC Sierra pickup truck into the back of a stopped vehicle on a freeway off ramp in Redwood City.
Officials said the collision caused injuries to the other driver's back, wrist, knee, leg and foot. They also said Smith told the alleged victim at the scene that he "cannot have cops there."
Prosecutors claimed Smith had a BAC of greater than .15 at the time of the wreck. Smith had first pleaded not guilty to the charges.
Aldon, who was cut by the Seattle Seahawks just a few months prior to the DUI arrest, has not played a down in a regular season game since 2020 with the Cowboys. He's currently a free agent, though it's unclear if he has any goals of another NFL comeback.