Jozy Altidore will have his injured left hamstring examined after the U.S. squad returns to its Sao Paulo headquarters from Monday night's 2-1 victory against Ghana.

U.S. Soccer Federation spokesman Neil Buethe confirmed Tuesday that Altidore would be evaluated, as was expected.

In the first half Monday, Altidore ran down a ball with Ghana's John Boye when he lowered his head to attempt to control it and immediately grabbed the back of his left leg and fell to the ground in pain. He was replaced by Aron Johannsson.

The Americans' next Group G match is Sunday at Manaus against Portugal, a 4-0 loser to Germany.

Central defender Matt Besler was replaced at halftime as a precaution with right hamstring tightness.

Forward Clint Dempsey scored the USA's opener after just 29 seconds and went on to put in a man-of-the-match performance despite sustaining a broken nose after being kicked in the face by Ghana's John Boye.

"I think my nose is broken. I didn't consider coming off, I just wanted to go on for as long as I could, but I had trouble breathing," he said.

"I was coughing up blood a little bit from the back of my throat but I felt fine and that I could keep going.

"I did feel a little bit tired towards the end but hopefully I'll be able to start breathing through my nose again before the next game."