[1] Leslie attended Columbia High School, in Decatur, Georgia, where he played basketball.

On November 2, 2012, Leslie was selected by the Santa Cruz Warriors in the NBA D-League Draft.

[5] He was subsequently named the MVP of the D-League All-Star Game with 19 points, 7 rebounds and 1 assist as the Prospects went on to defeat the Futures 139–125.

[14] On July 23, 2014, Leslie signed a one-year deal with an option to another with Lietuvos rytas of Lithuania.

[15] After his contract with Lietuvos rytas expired, Leslie signed on August 14, 2015, with Medi Bayreuth of the Basketball Bundesliga.

[16] On October 30, 2016, Leslie was selected by the Fort Wayne Mad Ants with the fourth overall pick in the 2016 NBA Development League Draft.