Ken Rosenthal: A's Deal Anderson to Rockies

Here it is:

<blockquote class="twitter-tweet" lang="en"><p>Source: <a href="https://twitter.com/search?q=%23Rockies&amp;src=hash">#Rockies</a> acquire Brett Anderson from <a href="https://twitter.com/search?q=%23Athletics&amp;src=hash">#Athletics</a> for Drew Pomeranz and Chris Jensen.</p>&mdash; Ken Rosenthal (@Ken_Rosenthal) <a href="https://twitter.com/Ken_Rosenthal/statuses/410521958657589248">December 10, 2013</a></blockquote>
<script async src="//platform.twitter.com/widgets.js" charset="utf-8"></script>

Passan also has the same source:

<blockquote class="twitter-tweet" lang="en"><p>Source: LHP Brett Anderson goes to Colorado for LHP Drew Pomeranz and Class A RHP Chris Jensen. <a href="https://twitter.com/Ken_Rosenthal">@Ken_Rosenthal</a> had it first.</p>&mdash; Jeff Passan (@JeffPassan) <a href="https://twitter.com/JeffPassan/statuses/410522294096642048">December 10, 2013</a></blockquote>
<script async src="//platform.twitter.com/widgets.js" charset="utf-8"></script>

Awaiting confirmation...

UPDATE: And confirmed:

<blockquote class="twitter-tweet" lang="en"><p>I have had confirmation that Brett Anderson has been traded to Colorado. <a href="https://twitter.com/search?q=%23Athletics&amp;src=hash">#Athletics</a></p>&mdash; Susan Slusser (@susanslusser) <a href="https://twitter.com/susanslusser/statuses/410524175519191040">December 10, 2013</a></blockquote>
<script async src="//platform.twitter.com/widgets.js" charset="utf-8"></script>