COMMERCE CITY, Colo. -- Sluggish in the first half, the Americans needed some kind of catalyst.
So the team called on Jerome Kiesewetter and Jordan Morris, ending their nights off.
Kiesewetter sparked the offense with a goal and an assist in the second half, and the United States beat Panama 4-0 in CONCACAF Olympic qualifying on a rainy Tuesday.
Already through to the semifinal round, the Americans didn't have much to play for and rested several of their starters. Scoreless at halftime, coach Andi Herzog turned to his bench for a lift, sending in Kiesewetter and Morris.
The U.S. caught a break early in the second half when Panama defender Fidel Escobar knocked in a crossing shot. Kiesewetter then scored about three minutes later and Morris right after that.
Luis Gil wrapped up the scoring by converting a penalty kick, helping the Americans advance out of Group A with a 3-0 record. Canada finished second.
"Overall, in the first half, Panama was not the better team, but created two or three chances," Herzog said. "After halftime with three goals in 10 minutes, we showed them we're the better team."
Next up for the U.S. is an important game Saturday in Sandy, Utah, where the semifinal winners automatically qualify for the Olympics in Rio de Janeiro next summer. The U.S., which failed to qualify for the 2012 London Olympics, will play Mexico or Honduras, which face each other Wednesday night with the winner taking over the top spot in Group B.