Isaiah Wright -- the talented running back featured on the Netflix docuseries "Last Chance U" -- is being released from jail after cutting a plea deal in his murder case ... TMZ Sports has learned.
Wright was arrested back in Sept. 2017 on 1 count of criminal homicide in the stabbing death of an 18-year-old man. Wright has been locked up ever since.
Now, we've learned ... the 20-year-old appeared in a Tennessee courtroom on Wednesday where he agreed to a plea deal with prosecutors.
The terms of the deal .