Jimmy Maurer finished with four saves in his first start for Houston and Seattle's Stefan Frei stopped the only shot he faced as the Dynamo and Sounders played to a scoreless draw at Lumen Field on Saturday night. Maurer replaced Andrew Tarbell last week after the starter injured his knee in the first half of a 2-1 home loss to Real Salt Lake and was lost for the season. Maurer had 16 clean sheets in seven seasons and 65 starts with FC Dallas before joining the Dynamo (0-3-2), whose three losses have all come at home this season.