Complex sentence: He made his first start for the Houston Dynamo on July 1,2009, against USL-1 side Austin Aztex at Nelson Field in Austin, Texas in the third round of the Lamar Hunt U.S. Open Cup.
Split into simpler sentences: He made his first start for the Houston Dynamo against USL-1 side Austin Aztex at Nelson Field in Austin, Texas. The game was the third round of the Lamar Hunt U.S. Open Cup.