2017 Major League Soccer season

The 2017 Major League Soccer season is the 22nd season of Major League Soccer, top division of soccer in the United States and Canada. The regular season began on March 3, 2017 and will conclude in October 2017. The MLS Cup Playoffs are expected to begin in late October 2017 and conclude with MLS Cup 2017 in December 2017.

Two new clubs have joined the league as expansion franchises: Atlanta United FC and Minnesota United. The two franchises are the 21st and 22nd teams in the league.

Seattle Sounders FC are the defending MLS Cup champions, while FC Dallas are the defending Supporters' Shield champions.

Personnel and Sponsorship
Note: All teams use Adidas as kit manufacturer.

Format
Each team plays the other 10 teams in its conference home and away, plus an extra match against three of its conference rivals. In addition, one match is played against the 11 sides in the other conference. In total, each team will play 17 home and 17 away games.

Average home attendances
Ranked from highest to lowest average attendance.

Highest attendances
Regular season

Allocation ranking
The allocation ranking is the mechanism used to determine which MLS club has first priority to acquire a player who is in the MLS allocation list. The MLS allocation list contains select U.S. National Team players and players transferred outside of MLS garnering a transfer fee of at least $500,000. The allocations will be ranked in reverse order of finish for the 2016 season, taking playoff performance into account. Two expansion teams will take the top spots.

Once the club uses its allocation ranking to acquire a player, it drops to the bottom of the list. A ranking can be traded provided that part of the compensation received in return is another club’s ranking. At all times each club is assigned one ranking. The rankings reset at the end of each MLS season.