https://cdnph.upi.com/ph/st/th/2011784719555/2026/upi/fcd99aac7224767693a81a6acdfd6b5e/v1.5/Heat-mistakenly-post-LeBron-James-introductory-news-conference-link.jpg" /> The Miami Heat published a link to a "LeBron James introductory press conference," triggering an Internet stir, but said the post was a "mistake."