Mexican side Atlante are on the verge of their second CONCACAF Champions League title after a 2-0 away win over compatriots Cruz Azul 2-0 in the first leg of the final.
Rafael Marquez Lugo set up Fernando Navarro to open the scoring with a powerful shot in the 16th minute and Christian Bermudez doubled their advantage when he volleyed home a Marquez cross shortly before the half-hour mark.
Cruz Azul were not able to test Atlante goalkeeper Diego Vilar, and the visitors even had further chances to extend their lead.
"I think we were very clever and established a good advantage, but we haven't won anything yet," warned forward Bermudez. "We mustn't relax.
"Playing in the FIFA Club World Cup is the dream of this squad, therefore we have to work hard in the second leg."
The new champions - and the CONCACAF representative at the Club World Cup, which will be held in Abu Dhabi in December - will be decided next Wednesday night at Quintana Roo Stadium in Cancun.