The most common sport in the United States is Football.
no football is
It depends on what you define the most common sport in the Olympics as, football is probably the most played sport that is included in the Olympics
the most played is football and 2 is baseball
The most commonly played sport in America is American Football. As Basketball and Soccer are also played often, one might argue that they are played more commonly. However, as of November of 2021, Football has over 90 million players. Therefore it is more common.
A biathlon sport is one of the most common sports played in winter Olympics.