KING 5 Sports has learned the Sounders announcer Arlo White is leaving the club to become NBC's lead MLS play-by-play man. NBC picked up a 3-contract to broadcast MLS in August.  The MLS contract begins with NBC in 2012.  White has one more year left on his Sounders contract. But the club, reportedly, and NBC are working out the final details to make this happen.  We have a call into White, but he has yet to get back to us.

For you Arlo White fans, here's a youtube.com clip of Arlo's best calls for 2011.