In May of 2017, Serrano received an invitation to the U.S. Soccer Boys National Team Futures Camp. Serrano received his first of two call-ups to the U.S. U-17 Youth National Team for the Nike Friendlies, appearing in all three matches against Holland, Brazil and England. After impressing the coaching staff with his creativity and direct attacking style, Serrano was invited to the inaugural U.S. Soccer Youth National Team Summit Camp in January.
In the Summer of 2016, Serrano joined the Seattle Sounders Academy from the club’s Eastern Washington official partner, the Spokane Sounders. He initially signed with the U-15s, but after impressing with the U-17s at the Generation adidas Cup in October of 2016, he was moved up to the older squad for the remainder of the 2016-2017 season. In the current 2017-2018 USSDA season, Serrano has tallied 17 goals and six assists in 17 appearances for the U-17 squad.
Signed to S2’s roster on February 13, 2018.