Danny Jansen became the first player in MLB history to appear in the same game for both teams when he resumed a rain-delayed game that he started for the Toronto Blue Jays while now playing for the Boston Red Sox. After being traded to Boston last month, he completed an at-bat he started in June while catching for his new team. An authenticator documented his equipment, and the Baseball Hall of Fame requested the official scorecard to commemorate this unique achievement. Scoreboards displayed Jansen batting for the Blue Jays, creating a rare and memorable moment in baseball history.