Only if you define 'roster' as fully-contracted players and exclude DPs and Next Stars.
Well yeah that is the only definition of roster there is.
He's in exactly the same category: on the roster, contracted to the team, doesn't take up one of the 11 fully contracted spots.
No, he isn't on the roster because there isn't a spot on the roster left for him and he hasn't been signed as a replacement for someone coming off the roster. Contracted to the team as a glorified training player sure, but not on the roster no.
The Hawks 11 man roster this season was completed when they signed their third import Antonius Cleveland.
Imports: Tyler Harvey, Travis Trice, Antonius Cleveland
Locals: Duop Reath, Sam Froling, Harry Froling, Isaac White, AJ Ogilvy, Emmett Naar, Daniel Grida, Akoldah Gak