Houston Dynamo's goalkeeper Tally Hall (1) catches the ball as DC United's Maicon Santos, right, plays the ball during the first half of the second game of an MLS soccer Eastern Conference final playoff series match on Sunday, Nov. 18, 2012, in Washington. The Dynamo advanced to their second straight MLS Cup final and fourth in seven years, tying DC United 1-1 Sunday for a 4-2 aggregate win in the Eastern Conference final. (AP Photo/Luis M. Alvarez)

Photo by: Luis M. Alvarez

Houston Dynamo's goalkeeper Tally Hall (1) catches the ball as DC United's Maicon Santos, right, plays the ball during the first half of the second game of an MLS soccer Eastern Conference final playoff series match on Sunday, Nov. 18, 2012, in Washington. The Dynamo advanced to their second straight MLS Cup final and fourth in seven years, tying DC United 1-1 Sunday for a 4-2 aggregate win in the Eastern Conference final. (AP Photo/Luis M. Alvarez)