It was also the 89th season of FIFA-sanctioned soccer in the United States, and the 23rd with a national first-division league.
The Miami Fusion won their first Supporters' Shield and the San Jose Earthquakes defeated the Los Angeles Galaxy in the final to win their first MLS Cup.
The quarterfinals and semifinals were played as a best-of-three series, and the winners advanced to MLS Cup.
The team with the most points in the regular season was awarded the MLS Supporters' Shield.
Los Angeles Galaxy advance 1-0 in series overtime (SDET) after 4-4 tie on points.