All three teams eventually morphed into MLS clubs, and this season the trio are celebrating a 50-year milestone.

They also have two stars on that newly designed crest for their two MLS Cups, all while celebrating the 50th anniversary of the franchise.

For now, the primary purpose of the Seattle Sounders' training center that opened Tuesday will be to help the team remain among the MLS elite.

Harrell said the MLB All-Star Game in 2023 and January's Winter Classic served as a trial run.

The Seattle Sounders signed young Argentinian winger Pedro de la Vega on Wednesday, adding another highly paid attacker to their lineup.

Seattle Sounders goalkeeper Stefan Frei signed a new two-year contract, keeping him with the Rave Green through the 2025 season.

Defending champion LAFC advanced to the Western Conference final with a 1-0 win over the Seattle Sounders on Sunday night.

A sixth grader's dream came true in the lobby of a bank in downtown Seattle. He met one of his Major League Soccer heroes, Sounders goalkeeper Stefan Frei.