The article "the" is used when announcing trainers for battle (for example, Charlie the Bug Catcher. It worked for typical trainers but not Gym Leaders, Elite Four, your rival, or link battles. A screenshot in the instruction manual of the English Red and Blue still contains the text "The Brock wants to fight!", possibly suggesting a late removal. The instruction manual also calls them Pokemon Leaders, instead of Gym Leaders.
Contributed by Funland47
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