Johnson joined the Millsaps tennis coaching staff as the volunteer assistant coach for the Spring 2024 season.
In 2017, he was on the Clarion Ledger All-State Boys' Tennis Team and the MAIS 4A #1 Doubles State Champion. He was the MAIS 4A #2 Singles State Champion in 2016 and the MAIS 4A North State Champion in 2015.
Johnson is currently researching at UMMC.