Nope. The Toronto Blue Jays won the world series in 1992 and 1993.
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48-0 in Superbowls? Hard to lose when you don't invite other nations. That's acting like that childhood "freind" meme kid.
No other nation would stand a chance! There is a world cup of american football but it restricts the US team to players who are one year out of college but not professional. It still always comes down to the US and Japan
Also worth mentioning is that not only is there a significant American "Football" following in the UK, the commissioner has said that in the long term plans for the league, a Super Bowl held in the UK and London getting a team is on the table.
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48-0 in Superbowls? Hard to lose when you don't invite other nations. That's acting like that childhood "freind" meme kid.