Though the sport has only appealed to a niche following in America so far, rugby has the potential to explode in popularity — and soon. Rugby players like Penn junior co-captain Billy Barron — seen here looking to pass at the Collegiate Rugby Championships — need endurance at the level of elite soccer players and brute strength at the level of football players to succeed in a sport that can be intensely — sometimes brutally — physical.

All comments eligible for publication in Daily Pennsylvanian, Inc. publications.