Portland receives a conditional second-round draft pick in the 2020 NWSL College Draft and the rights to Caitlin Foord. Seattle obtained the rights to Foord following a trade with Sky Blue FC, which received defender Rebekah Stott and forward Katie Johnson.
“Strengthening our midfield with a world-class player like Allie Long is a big step forward for our squad,” said Vlatko Andonovski, Seattle’s head coach. “Allie has been a massively impactful player for Portland over the past five years and we believe she can have a similar impact on our team.”
“Since the league started, Vlatko has been a coach whose style of play is something I have always admired and respected,” said Long. “The fact he is at Seattle with some of the best players in the world is a dream scenario. I know this is exactly what I need to become the best player I can be. I am excited for the next challenge in my career — the best is yet to come.”
Long, a native of Northport, signed with Portland in 2013 and during her time with the Thorns made 104 appearances with 31 goals and 13 assists. Her 31 goals are good for sixth most in NWSL history.
Internationally, Long has 33 caps and six goals for the United States women’s national team, most recently appearing in their 1–1 tie with Canada in November. Long was also named to the 2016 Rio Olympics roster, starting in three of four matches.
Prior to joining Portland, Long had stints with the Washington Freedom and Sky Blue FC in the U.S. and Paris Saint-Germain in France.
During the 2017 NWSL season, Long was one of only three Thorns players to start all 22 matches. She had three goals and three assists and scored the game-winning goal in Portland’s extra-time semi-final win over FC Kansas City. The win propelled Thorns FC to the first NWSL Championship.