(Portland, OR)  --  The Portland Timbers are back on the pitch tomorrow hosting the Houston Dynamo.  Portland defeated Seattle in the U.S. Open Cup 3-1 on Tuesday, and have won three straight MLS matches.  Houston defeated the Timbers 3-1 last month.  Portland is currently fourth in the MLS Western Conference standings at 6-5-and-4.  Opening kick from Providence Park at 7:30.