Twelve hours before a series, the typical preview names a start time, a stage label and a series length, then attaches a paragraph on each team's recent form, a paragraph on a roster situation and a paragraph on a likely veto. The first paragraph is the schedule. The form paragraph is the verified team note. The veto paragraph is the rumor file.
The schedule is the easy read. The organizer feed has already published the start time, the stage and the series length, so a preview that names these matching the feed is, on those two facts alone, a confirmed document. The form paragraph is harder: a line such as "the side has won three of its last four map vetoes" can be true, half-true or unverifiable. The two public sources the desk accepts for a form claim are the organizer's replay archive and the team's own channel. A preview that names neither is asking the reader to trust the writer.
The rumor file is the part most previews hide inside an otherwise honest paragraph. A roster move, a stand-in, a coach change, a veto "leak": these often arrive with the same typographic weight as the schedule. A reader who treats the rumor file as confirmed has already misread the preview.