The most successful profession team is the Brazalian team.
The Arkansas Razorbacks from the University of Arkansas are the most successful Arkansas football team. Arkansas does not have a National Football team, therefore the most successful team would be a college team.
Boston Celtics are the most successful NBA Team with 17 Championships, as of 2009.
Brazil
texas
CLIPPERS
Spanish
The most successful club is Liverpool.
Liverpool FC
csk
The Spanish.
The Yankees of course