EN FOTOS: Bruce Arena y EEUU debutan sin gol en San Diego

Jan 29, 2017; San Diego, CA, USA; United States midfielder Darlington Nagbe (6) settles the ball against the Serbia during the first half at Qualcomm Stadium. Mandatory Credit: Jake Roth-USA TODAY Sports ** Usable by SD ONLY ** (Jake Roth / USA Today Sports)

Jan 29, 2017; San Diego, CA, USA; United States midfielder Sacha Kljestan (16) is chased by Serbia defender Nemanja Calasan (14) during the first half at Qualcomm Stadium. Mandatory Credit: Jake Roth-USA TODAY Sports ** Usable by SD ONLY ** (Jake Roth / USA Today Sports)

United States head coach Bruce Arena, left, shakes hands with Sunil Galati, President of the U.S. Soccer Federation, before a friendly soccer match against Serbia, Sunday, Jan. 29, 2017 in San Diego. (AP Photo/Denis Poroy) (Denis Poroy / AP)

United States’ Sebastian Lletget, right, goes after the ball with Serbia’s Milos Simonovic during a friendly soccer match, Sunday, Jan. 29, 2017 in San Diego. (AP Photo/Denis Poroy) (Denis Poroy / AP)

United States’ Juan Agudelo, left, covers his face after a missed opportunity as Serbia’s Marko Klisura, right, claps during a friendly soccer match Sunday, Jan. 29, 2017 in San Diego. (AP Photo/Denis Poroy) (Denis Poroy / AP)

United States’ Jorge Villafana, right, passes past Serbia’s Enver Alivodic, left, during a friendly soccer match Sunday, Jan. 29, 2017, in San Diego. (AP Photo/Denis Poroy) (Denis Poroy / AP)

United States head coach Bruce Arena, right, looks on from the sideline during warmups before a friendly soccer match against Serbia, Sunday, Jan. 29, 2017 in San Diego. (AP Photo/Denis Poroy) (Denis Poroy / AP)

SAN DIEGO, CA - JANUARY 29: Head coach Bruce Arena of the United States looks on during pregame warm-ups prior to their match against Serbia at Qualcomm Stadium on January 29, 2017 in San Diego, California. (Photo by Kent Horner/Getty Images) ** OUTS - ELSENT, FPG, CM - OUTS * NM, PH, VA if sourced by CT, LA or MoD ** (Kent Horner / Getty Images)