But if the forward was in any doubt about his move to Seattle, the welcome afforded to the player by the club and almost 40,000 supporters inside CenturyLink Field will have assuaged his thoughts.
Dempsey scored 12 goals in 43 appearances for Tottenham last season, but his first-team opportunities would have been limited this year following the arrival of Roberto Soldado from Valencia.
Sounders owner Joe Roth declared the signing as "an historic day" for his MLS team, saying, "Clint is a world-class soccer player who can take this club to a higher level. We have been consistent in our message to the fans that we will spare no expense to win trophies."
Dempsey was given the all-star treatment in front of the Sounders supporters on Saturday night as he was unveiled at CenturyLink Field.
The USMNT skipper, who has earned 99 caps for his country, wore a hooded sweatshirt at first before slowly revealing a Sounders jersey to the sell-out crowd when Roth asked him which club he had chosen to play for in the MLS.
Dempsey then went on a lap of welcome around the ground before Seattle's 3-0 win over FC Dallas.