In a letter published by the St. Louis Post-Dispatch on Sunday, Blues owner Tom Stillman thanked his fans after "the elation of breaking through and bringing St. Louis its first-ever Stanley Cup."
One problem: The Blues haven't actually won the Stanley Cup yet. The letter, as well as a few congratulatory advertisements, appeared in the digital edition of the newspaper hours before the team was scheduled to play Game 6 against the Bruins, leading the series 3-2.
The ad pages were visible in the subscribers-only E-edition of the paper and were removed. But not before more than a few readers noted them, and they hit social media.