Education
Walker attended Holmes County High School, which he led as a senior to a 1A state championship and a 20-8 record, tallying 30 points, 15 rebounds and seven blocks in the title game.
Walker attended Holmes County High School, which he led as a senior to a 1A state championship and a 20-8 record, tallying 30 points, 15 rebounds and seven blocks in the title game.
He played college basketball for the University of Florida. He also started in the 2013 Jordan Brand Classic, having 14 points and seven rebounds and earned McDonald’s All-American honors. Having offers from Florida State, Baylor, Connecticut, Kansas, and Ohio State, Walker chose to play for the University of Florida, but due to his inability to academically qualify, he didn"t enroll until December 2013.
When he finally joined the Gators, he missed 10 more games while the National Collegiate Athletic Association investigated allegations that he had received improper benefits in high school, and an additional two when it was determined he had.
In two seasons with the Gators, he averaged 3.7 points and 2.7 rebounds in 49 career appearances, including six starts. After going undrafted in the 2015 National Basketball Association draft, Walker joined the Houston Rockets for the Las Vegas Summer League.
On September 21, 2015, he signed with the Rockets, only to be waived by the team on October 23 after appearing in three preseason games. On November 2, he was acquired by the Rio Grande Valley Vipers of the National Basketball Association Development League as an affiliate player of the Rockets.