Santos Laguna was the top-scoring team in the group stage of CONCACAF Champions League.
And now they’ll almost certainly at least share the same honor for the quarterfinals, after erupting for four second-half goals on their way to a 6-1 win over Sounders FC.
It was the worst competitive loss in Sounders FC history.
The result gave Santos a 7-3 win in the aggregate-score series, and sends them through to the semifinals against Toronto FC.
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The result also eliminates Seattle from this Champions League competition, although the club already has qualified for the 2012-13 CCL.
Seattle arrived in Mexico with a 2-1 lead, following their series-opening win the week before.
That advantage disintegrated quickly Wednesday as Santos’ Christian Suarez scored in the eighth minute and Oribe Peralta scored again in the 10th.
The Sounders inched back into contention in the 37th minute, when Fredy Montero put a cross onto the head of Alvaro Fernandez, and he knocked it down and past Santos goalkeeper Oswaldo Sanchez.
With that goal, the Sounders drew even in aggregate-score and in the tie-breaker of away goals.
And that’s how things remained as the clubs came out for the second half.
However, it didn’t stay that way long.
Herculez Gomez put Santos back ahead with a goal in the 49th minute, and father ahead with another in the 68th. Suarez scored again in the 76th minute, and Carlos Ochoa set the final score with another in the 81st minute.
It ended as the worst defeat and most goals allowed in any meaningful competition played by Sounders FC.
The Sounders will fly home Thursday and begin to turn their attention to the start of their fourth Major League Soccer season on Saturday, when Toronto visits CenturyLink Field
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