The Seattle Sounders got a first-half goal from Clint Dempsey but conceded four times, eventually falling 4-1 in their road matchup against the Chicago Fire at Toyota Park on Saturday.
Striker Nemanja Nikolic opened the scoring on a hotly contested first-half penalty kick and added the final tally in the 76th minute, while David Accam and Luis Solignac also netted to pace Chicago.
Dempsey equalized the contest with his fourth goal of the season in the 28th minute, but the three second-half goals would ultimately seal the result.
The contest was open throughout the first half, with both sides generating dangerous changes within the first 10 minutes.