Germany boss Joachim Low complimented USA Coach Jurgen Klinsmann after both sides progressed to the Last 16.
“I knew it would be difficult today and it was,” Low told FIFA.
“USA defended deep, they were well organised, but I have to say we dominated, denying them good chances in the process. Our midfield was great today - they were dynamic and never stopped running.
“In the Round of 16 it’s all or nothing. If you don’t win, you go home.”
A draw would’ve guaranteed both sides go through, but Germany played to win and got their result.
“I asked Jurgen for the result of the other match, which I didn’t know, and then he told me that they’d qualifed. I told him that I was happy for him.
“It wasn’t easy for USA – everyone thought Portugal would qualify, but they’ve done it. They’re tough opponents and they’ve deserved it.”