Tottenham this morning put out the news on it's website: "We have reached agreement with Major League Soccer for the transfer of Clint Dempsey."
No announcement is expected from Sounders until this evening. However, the club confirms there will be a "special presentation" at CenturyLink Field at 7:15 p.m. ... 15 minutes before the first kick with FC Dallas.
Here's the report from the Tottenham website, which adds: "The United States international returns to MLS after making 43 appearances and scoring 12 goals in our colours following his signing from Fulham last summer. We wish Clint every success for the future."
Here's an update from MLSsoccer.com.