Both teams are coming off wins, but neither have played an official game since Jan. 4 — the Blast beat the Pennsylvania Roar, 16-5, and the Ambush beat the Rochester Lancers, 14-12.
Defense has been the biggest strength for the Blast, which boasts the top two goalkeepers in the league. Starter William Vanzela (4-2) has a 5.4 points against average that actually surpassed by backup Troy Hernandez, who has allowed 2.33 points per game while going 3-0 so far this season.
The Blast is in second place, one game behind the Milwaukee Wave, which is 8-1 this season. St. Louis, in fifth place, is 1-3 on the road and will need a strong performance from veteran goalkeeper Jeff Richey to stay close in Baltimore.
After leading the Major Indoor Soccer League in saves last year with the now-defunct Chicago Soul, Richey is struggling this season, allowing 14.65 points per game.
The Blast will need to keep a close watch on Ambush forward Odaine Sinclair, who is ninth in the league in scoring with 10 goals and five assists for 26 points.