Popularity is always debatable but I believe soccer is the most popular sport in the world. However, I believe Americans will like rugby better because it is more similar to American football.
What are some similarities between rugby and American football?
What is the championship game?
What does a rugby ball look like?
Is rugby played in the United States?
Is there a professional American rugby league?
How much money does a professional rugby player make?
Has the United States rugby team ever won a gold medal?
What are some useful rugby sites?
Who are some famous rugby players?
How many players on a rugby team?
Is rugby more popular than soccer?