Mark Sanchez is out of the hospital, TMZ has learned … and, he’s now being processed through the jail.

Sources with knowledge tell TMZ … the NFL commentator was released from the hospital earlier Sunday — a little more than 24 hours after he was stabbed in downtown Indianapolis.

We’re told they’re booking him through the jail … though his cash bond has already been paid by California attorney Nick Sanchez.

As you know … Sanchez was arrested while in the hospital Saturday — and, prosecutors have charged him with battery resulting in injury, public intoxication and unlawful entry of a motor vehicle.

Dispatch audio captured police discussing gathering evidence in the area … though it’s unclear what exactly they were looking for of if they found anything.

A local reporter shared photos of the other person allegedly involved in the incident who suffered lacerations to his face … and, the cut on his jaw is quite grisly.