Julie Johnston's World Cup journey began in Mesa

Young girls run around the fields of Barney Park in Queen Creek with shin guards on and a soccer ball at their cleats trying to perfect "The Jules."

The move is named for Mesa native Julie Johnston, a defender for the United States Women's National Soccer Team set to play Tuesday against Germany in the 2015 FIFA Women's World Cup semifinals.

She has played every minute of the team's five games in the tournament thus far and was named FIFA Player of the Match by the FIFA Technical Study Group on June 16 in the United States' game against Nigeria. Johnston kept the score 1-0 by stopping opponent Asisat Oshoala on a breakaway that could have tied the match.

Dan Wolf coached Johnston from ages 10 to 12 for Gilbert Arsenal Soccer Club, now known as Arizona Arsenal Soccer Club. Wolf named "The Jules" after Johnston, which he has continued to teach to young players following in her footsteps.

"She really latched on to dribbling," Wolf said. "She would learn a move and practice that move over and over until she had it."

Arsenal Soccer coach Bob Lawrence recalls 10-year-old Julie sitting on his lap at Barney Park when her girls team would scrimmage against his former boys team.

"I mostly remember how outgoing she was and how even at 10, 11 years old, she could carry on a conversation like she was an adult," Lawrence said.

Ray Perkins, Johnston's vice principal at Dobson High School, said she was an all-around student while attending. He laughed when remembering how competitive she also used to be.

"I remember one year she didn't get to play the final minutes of a powder puff game and boy was she mad," he said.

Johnston volunteered as a student athletic trainer for her four years at Dobson High School but never played for the girls soccer team. She was playing on the fields of Sereno Soccer Club instead.

Johnston played with Sereno for six years before leaving her hometown to play for Santa Clara University.

One thing that sets Johnston apart from her teammates this World Cup is that she is the second youngest player on the team after midfielder Morgan Brian.

Johnston's former Sereno Soccer coach David Robertson sees this as an advantage.

"The only way to get experience is to do it," Robertson said. "Fail and learn. Experiential knowledge is the best way to learn...She is ready."

Johnston first joined the U.S. Soccer program in 2006 when she attended a National Identification Camp at the age of 14. She continued to play for several youth national teams and was the captain of the U.S. team during the 2012 FIFA U-20 Women's World Cup.

Robertson said she also had a phenomenal first year in the National Women's Soccer League. After the Chicago Red Stars selected her third overall in the NWSL Draft, she started all 21 games she played. The 23-year-old scored two goals and two assists and was nominated for the 2014 NWSL Rookie of the Year.