has just been fired by Louisville, according to multiple reports ... marking the first big-name head coach to get the ax after the FBI corruption sting that rocked NCAA basketball on Tuesday.
Federal prosecutors say an Adidas executive worked with basketball coaches from Louisville in an illegal scheme to pay high school recruits to ultimately attend the University.
Neither the University of Louisville nor any Louisville coaches have been formally accused of wrongdoing ... at least not yet. However, the Adidas exec has been arrested.
Pitino has maintained his innocence since the allegations came to light .