FCD, TFC square off with CCL knockout berth on line; Seattle looks to wrap up 1st

Major League Soccer has taken some major strides during the 2011-2012 CONCACAF Champions League, but as the final games of group play approach, there is still work to be done before crowning this campaign as a great success.

Only one MLS team, Seattle, has clinched a place in the knockout stage so far, but that could all change Tuesday night.