On September 28, 1988, sports columnist Thomas Boswell of "The Washington Post" appeared as a guest on "CBS News Nightwatch" and alleged that Canseco, who was on his way to winning the MVP award that season, was "the most conspicuous example of a player who has made himself great with steroids.” Boswell did not print the allegations in the paper. According to George Solomon, who was the "Post"'s sports editor, the newspaper required 100 percent certainty in what it published. "What Boswell said on CBS was Boswell’s opinion,” Solomon said. In October against Boston during the 1988 American League Championship Series, Red Sox fans at Fenway Park loudly chanted "Ster-roids! Ster-roids!" when Canseco was on the field. He denied the charges, and steroids at the time were not covered in the federal government's Controlled Substances Act.