(Portland, OR) -- When the Dynamo meet the Timbers on Sunday in the second leg of the MLS Western Conference, Houston will probably be without starting goalie Tyler Deric. He was arrested for allegedly assaulting his girlfriend. The league announced it has suspended Deric pending investigations by the league and the Houston police department. He was the MLS player of the month for October. Portland and Houston played to a nil-nil draw on Monday in the first game of the semifinals.