Amatuer detectives of bluemoon unite!
This is the twitter page he is referring to: <a class="postlink" href="http://twitter.com/WhoAreYaDesigns" onclick="window.open(this.href);return false;">http://twitter.com/WhoAreYaDesigns</a>
They make funny football t-shirts and the like (some are quite cool actually).
Anyway they are located in the city of Boise, Idaho which is 500 miles and 7 and a half hours from Seattle according to GoogleMaps. They may have been there but I doubt it.
Just before they posted their claim they said 'going for a full irish and a guinness'. So they were in Seattle to watch Chelsea, went for a full Irish, then strolled down to the Chelsea hotel and got John Terry to confirm he is staying at Chelsea. This was all posted at 9:30 am'ish Seattle time.
My conclusions are:
they are on a WUM, trying to get interest in their t-shirts by claiming something that will attract people to their site.
Or:
Someone in Seattle has told them, but I'm sure the media would have picked up on it if it was true.
Or:
They are on holiday in Seattle to watch Chelsea and it actually happened.
Truth rating: 2/10.
NEXT!