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"&lt;p&gt;&lt;/p&gt;&lt;p&gt;\n\n&lt;/p&gt;&lt;p&gt;Here comes another round of international competition for three MLS teams, all of which aspire to lift the league trophy in November. Four-time MLS champion D.C. United and defending champ Columbus Crew open CONCACAF Champions League group play Tuesday against Honduran club Marath&amp;oacute;n and USL-1 upstart Puerto Rico Islanders, respectively. Houston, MLS Cup winner in 2006 and '07, plays Isidro Metap&amp;aacute;n of El Salvador Wednesday.&lt;/p&gt;&lt;p&gt;\"These tournaments are a challenge to us, with our limited rosters, and you travel to some tough places, and it can be really hard if you get a few injuries,\" said Dynamo coach Dominic Kinnear. \"But we look at them as important for our league and a chance for our players to test themselves at another level.\"&lt;/p&gt;&lt;p&gt;Six group games will be played over the next two months, with the top two teams in each of the four groups advancing to the quarterfinals.&lt;/p&gt;&lt;p&gt;Last year, Houston was the only MLS team to reach the quarters: D.C. stumbled in the group phase, and the other two league representatives -- New England and Chivas USA -- were eliminated in the head-to-head preliminary round. Houston fell in the quarterfinals to the eventual champion, Mexican club Atlante, 4-1 on aggregate.&lt;/p&gt;&lt;p&gt;D.C. United got through the preliminary round earlier this month, but needed penalty kicks to edge past El Salvador's Lu&amp;iacute;s &amp;Aacute;ngel Firpo 5-4 after the teams had traded 1-1 ties. Christian G&amp;oacute;mez equalized with a free kick for D.C. in the away leg to knot the aggregate 2-2 and converted the decisive penalty kick.&lt;/p&gt;&lt;p&gt;\"I don't think it was the prettiest game, but results matter in these competitions,\" said midfielder Ben Olsen, one of five United players to put away their penalties. \"To be frank, it could have gone either way, but you have to give credit to our guys. We hung in there and we stepped up on the PKs.&lt;/p&gt;&lt;p&gt;\"This club always puts a lot of emphasis on this tournament. We want to be one of the better teams in this region and this is a way to put a stamp not only in America but abroad and show that D.C. United is a regional power.\"&lt;/p&gt;&lt;p&gt;One of only two MLS teams to win the CONCACAF Champions' Cup (predecessor to the Champions League), along with the Los Angeles Galaxy, D.C. is looking for some redemption after losing five and tying one of its group games last year. It starts off its schedule Tuesday with a tough opponent in a difficult setting, in San Pedro Sula (10 p.m. ET, Fox Soccer Channel) against Marath&amp;oacute;n, which beat D.C. twice last year: 2-0 at Estadio Olimpico and 4-2 at RFK.&lt;/p&gt;&lt;p&gt;\"It was a tough atmosphere,\" midfielder Clyde Simms told MLSnet.com of the 2-0 away defeat. \"The crowd was good for them, and it's always tough playing those international games -- you're playing against a team that you're not used to seeing and don't know much about.\"&lt;/p&gt;&lt;p&gt;In the quarterfinals last year, Marath&amp;oacute;n came up against the Puerto Rico Islanders, who advanced to the semis by winning the away leg 1-0 and prevailing 2-1 at home.&lt;/p&gt;&lt;p&gt;\"We did it last year and now we'll do it again this year so maybe people will start to believe a little bit more,\" said Islanders coach Colin Clarke, formerly the head coach of FC Dallas. The Islanders and Crew are drawn in Group C with Cruz Azul of Mexico and Deportivo Saprissa of Costa Rica in what is regarded as the toughest quartet.&lt;/p&gt;&lt;p&gt;Columbus hosts Puerto Rico in the first group game Tuesday (7 p.m. ET, FSC), on a roll of five straight league victories and eight games unbeaten. In the last win, a 2-0 defeat of FC Dallas Saturday, midfielder Guillermo Barros Schelotto played the last few minutes after missing a month of action due to a hamstring strain.&lt;/p&gt;&lt;p&gt;\"It's great to have him back,\" said midfielder Robbie Rogers, who has been taking some of the set plays in Schelotto's absence and hit a corner kick that Chad Marshall headed home for the first goal against Dallas. \"I don't know if he's 100 percent. He's 36. He's got to be careful to get his strength and fitness back. When he's back we'll be even better.\"&lt;/p&gt;&lt;p&gt;Right back Frankie Hejduk sat out the Dallas game because of a right quad strain and probably won't be available until next week. Islanders goalkeeper Bill Gaudette played three seasons ('05-07) with the Crew.&lt;/p&gt;&lt;p&gt;Columbus last played in a CONCACAF competition in '03, when it defeated &amp;Aacute;rabe Unido of Panama in the first round and lost to Mexican club Morelia in the Champions' Cup quarterfinals.&lt;/p&gt;"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.si.com/soccer/2009/08/18/concacaf-championsleague>