Later the same day, Martin agreed to a multi-year deal with the Hornets and was converted to a standard deal. On October 25, 2019, Martin made his debut in NBA, coming off from bench in a 99–121 loss to the Minnesota Timberwolves with four points, two rebounds, three assists, two blocks and a steal. On November 27, 2019, Martin received his first assignment to the Hornets NBA G League affiliate, the Greensboro Swarm.