An All-American in high school, he played college basketball for the Mississippi State Bulldogs from 2009 to 2012.

[2] As a junior at Fairfax High School, Sidney averaged 24.0 points and 13.3 rebounds per game and was an all-state selection.

[1] Sidney missed his entire freshman season at Mississippi State due to an NCAA suspension.

[3] Following his junior season at Mississippi State, Sidney declared for the 2012 NBA draft, but went undrafted.

[6][7] On January 10, 2016, Sidney was selected as the number one overall pick to the Compton Airmen in the inaugural draft of the California Basketball Association.