Top Ten U.S. Sports Pro Teams with the Worst Sportsmanlike Conduct

The Top Ten
1 Detroit Pistons (NBA) The Detroit Pistons are an American professional basketball team based in Detroit, Michigan. The Pistons compete in the National Basketball Association as a member of the league's Eastern Conference Central Division.
2 Los Angeles Lakers (NBA) The Los Angeles Lakers are an American professional basketball team based in Los Angeles. The Lakers compete in the National Basketball Association, as a member of the league's Western Conference Pacific Division. ...read more.
3 Seattle Seahawks (NFL) The Seattle Seahawks are a professional American football franchise based in Seattle, Washington. The Seahawks compete in the National Football League as a member club of the league's National Football Conference West division.

If you go back and watch pretty much every game in Seattle they would get away with that a lot every time. Bound to lose guaranteed.

4 St. Louis Cardinals (MLB) The St. Louis Cardinals are a professional baseball team based in St. Louis, Missouri. The Cardinals compete in Major League Baseball as a member club of the National League Central division.
5 New England Patriots (NFL) The New England Patriots are a professional American football team based in the Greater Boston region. New England Patriots are one of the few teams to have 5+ wins in the Super Bowl.
6 Boston Celtics (NBA) The Boston Celtics are an American professional basketball team based in Boston, Massachusetts. They are specifically known for honing infamous players such as Larry Bird, Bill Russell, Paul Pierce, and more. They are also known for having the most championships in NBA History, with 17 total.
7 Dallas Cowboys (NFL) The Dallas Cowboys are a professional American football team based in the Dallas–Fort Worth metroplex. The Cowboys compete in the National Football League as a member club of the league's National Football Conference East division.
8 San Francisco 49ers (NFL) The San Francisco 49ers are a professional American football team located in the San Francisco Bay Area.
9 Oakland Raiders (NFL) The Las Vegas Raiders are a professional American football franchise based in Las Vegas. The Raiders began playing in 1960 as a member club of the American Football League; they have been a member club of the National Football League since the 1970 AFL–NFL merger. ...read more.
10 Los Angeles Rams (NFL) The Los Angeles Rams are a professional American football team based in the Los Angeles metropolitan area.
The Contenders
11 Los Angeles Chargers (NFL) The Los Angeles Chargers are a professional American football team based in Los Angeles. The Chargers compete in the National Football League as a member club of the league's American Football Conference West division.
12 Golden State Warriors (NBA) The Golden State Warriors are an American professional basketball team based in San Francisco. The Warriors compete in the National Basketball Association as a member of the league's Western Conference Pacific Division. ...read more.
13 Detroit Lions (NFL) The Detroit Lions are a professional American football team based in Detroit, Michigan. The Lions compete in the National Football League as a member club of the league's National Football Conference North division. ...read more.
14 Dallas Mavericks (NBA)
15 Oakland A's (MLB)
16 Detroit Tigers (MLB) The Detroit Tigers are an American professional baseball team based in Detroit, Michigan. The Tigers compete in Major League Baseball as a member of the American League Central division.
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