While talking with Mark Schwarz fresh off of winning a gold medal, Carmelo Anthony and Kevin Durant reflect on winning it all for Team USA, as well as joke around with teammates DeAndre Jordan and Draymond Green. (2:15)

An emotional Carmelo Anthony announced his retirement from international play Sunday after helping the United States men's Olympic team win gold.

Anthony is the first American men's basketball player to win three gold medals, the third coming after Team USA's 96-66 win over Serbia on Sunday. He will also retire as the all-time leading scorer in men's U.S. Olympic play with 336 points and is the program's all-time leading rebounder.

"I know this is the end. This is it for me, this is it for me. I committed to something ..." Anthony said in an interview with NBC, trailing off for several seconds to gather himself. "I committed to this in [2004]. I've seen the worst and I've seen the best, and I stuck with it -- we stuck with it. And I'm here today, three gold medals later."

Anthony and the U.S. men settled for a bronze medal in the 2004 Olympics in a disappointing performance; he's helped the Americans win three straight gold medals since. Anthony had seven points and seven rebounds Sunday, checking back in in the final quarter so he could get one more rebound -- the 125th of his Olympic career -- which pushed him past David Robinson on the all-time list.

"I think I've given enough to Team USA basketball," Anthony said in a news conference after the game. "As much as I'm going to miss it, it's time to pass it on to some of the guys that [were] on our team this year but also to the younger guys coming along, to give them an opportunity to be a part of something great.

"It's been a fun journey for me. It's been a fun ride. I've seen both sides of it. I've seen the losing side, and I've seen what it feels like to win three gold medals. I wouldn't trade that for anything in the world."

Carmelo Anthony announced his retirement from international basketball after helping Team USA beat Serbia 96-66 en route to his third Olympic gold medal. He also addressed recent police-related social unrest seen across the United States. Jamie Squire/Getty Images

Anthony, 32, chose to play with the U.S. team during a summer in which close friends LeBron James, Chris Paul and Dwyane Wade either passed on the chance to play or were sidelined by injury. Anthony said Sunday that he appreciated the opportunity to lead a new group of Olympians to gold.

"I just want to say thank you for allowing me to be one of the leaders, not just of our team but of our country," Anthony said.

The last part of his statement was a reference to the vocal stance Anthony has taken this summer in the wake of shooting deaths of black men by police officers and the shooting deaths of police officers across the country.

Anthony used Sunday's platform to send a message of unity in the wake of the recent social unrest.

"Despite everything that's going on right now in our country, we got to be united," he said. "... America will be great again, I believe that. We got a lot of work to do, but one step at a time. I'm glad we represented it in the fashion that we did."

Information from ESPN senior writer Marc Stein contributed to this report.