Paul Allen is a minority owner of the Seattle Sounders. There's a decent chance you don't know that because, well, he's basically invisible. He doesn't really talk about the team. He's not really involved in the club's management, now that the Seahawks and Sounders are separate business entities. It's not even clear if he regularly attends matches.
But, he did send out a congratulatory tweet. Never mind that it reads like a robot wrote it and that he probably doesn't even know who they played.
@SoundersFC congrats on your 3-2 victory and advancing to the W conference Semifinals!— Paul Allen (@PaulGAllen) October 29, 2015