Michael Lewis -- the 55-year-old man accused of stalking and harassing Caitlin Clark -- was just sentenced to 2.5 years behind bars.
The Texas-native appeared in an Indiana courtroom on Monday, and after striking a deal with prosecutors ... he formally pleaded guilty to one felony count of stalking and one misdemeanor count of harassment.
In addition to time in a cell, Lewis was ordered to have no contact with Clark and to stay away from Gainbridge Fieldhouse, Hinkle Fieldhouse, Indiana Fever Events and Pacers Organization Events.