Pete Carroll might have to find a new LB less than a quarter of the way into the Seahawks' season ... TMZ Sports has learned Mychal Kendricks' insider trading sentencing has been set for Sept. 25.
The 28-year-old confessed and pled guilty to insider trading back in September 2018 ... and he was slated to be punished for the crime last April.
But the Seahawks stud had his hearing postponed for unknown reasons ... but according to new court docs obtained by TMZ Sports, that date has finally been set for Week 4 of the NFL season.