Arena confirmed his exit from the post after 11 months in charge during his second stint with the USMNT with a message on U.S. Soccer's official website.
"It is the greatest privilege for any coach to manage their country's national team, and as I leave that role today I am honored and grateful to have had that opportunity twice in my career," he wrote. "When I took the job last November, I knew there was a great challenge ahead, probably more than most people could appreciate. Everyone involved in the program gave everything they had for the last 11 months and, in the end, we came up short. No excuses. We didn't get the job done, and I accept responsibility."