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MLS Supporters Shield winners D.C. United and MLS Cup winners the Houston Dynamo find themselves in an interesting position this year. Their success last season earned them bids for not one, but two CONCACAF-sanctioned competitions.

D.C. and Houston begin their quest for the CONCACAF Champions Cup tonight. D.C. travels to Kingston, Jamaica, to face Caribbean champs Harbor View in the first leg of their quarterfinal tie, while Houston plays the first leg of its quarterfinal against Municipal in Guatemala City. The second legs for both quarterfinals will be played next week at the MLS clubs' home stadiums.

This is the final edition of the Champions Cup, as CONCACAF launches its shiny new Champions League next August, which everyone involved hopes will become equivalent to the UEFA Champions League and the Copa Libertadores. D.C. and Houston will enter that competition at the group stage, while Chivas USA and the New England Revolution will enter the qualifying round.

D.C. and Houston were both bounced out of the Champions Cup semifinals last year by Mexican clubs. Houston's loss to eventual champion Pachuca was particularly painful, as Pachuca scored 5 goals at home in the second leg to topple the Dynamo 5-4 on aggregate.

You can find a full preview of the Champions Cup quarterfinals at SoccerLens. Both quarterfinals featuring MLS clubs will air live tonight on Fox Soccer Channel.