D.C. United's Hamdi Salihi, left, pushes past Houston Dynamo's Andre Hainault (31) during the second half of an MLS soccer match Saturday, May 12, 2012, in Houston. The Dynamo won 1-0. (AP Photo/Pat Sullivan)

Photo by: Pat Sullivan

D.C. United's Hamdi Salihi, left, pushes past Houston Dynamo's Andre Hainault (31) during the second half of an MLS soccer match Saturday, May 12, 2012, in Houston. The Dynamo won 1-0. (AP Photo/Pat Sullivan)