The fairy tale story ended on Wednesday when sports website Deadspin published a piece dismissing as a hoax the existence of Te'o's girlfriend and suggesting he was complicit.
Earl Haig, who says he has received "hate mail" because of his father's reputation, says te perception that British troops were "lions led by donkeys" is extremely hurtful.
The too-good-to-be-true story began with Te'o's incredible performances after learning his grandmother and what he believed was his girlfriend had died within hours of one another in September.
Because ABC News has made public only snippets of the interview, it's not clear which parts of the hoax Te'o will address, but the Notre Dame standout has said he's sure he'll be vindicated.