Baltimore Brigade of the Arena Football League. His start in the AFL came in a short stint with the Orlando Predators in 2014, where he saw very little action. After bouncing between the AFL and the Canadian Football League, Sims signed with the Arizona Rattlers in 2015, but again saw very little action. His talents would not show until signing with the Cleveland Gladiators, where he accumulated back-to-back 1,000-yard receiving seasons in 2016 and 2017. With the Gladiators announcing they would be on hiatus following the 2017 season, Sims signed with the Baltimore Brigade in 2018.