Education
In 2014, he traveled to the United States as a foreign exchange student and attended Blue Valley Northwest High School in Overland Park, Kansas.
In 2014, he traveled to the United States as a foreign exchange student and attended Blue Valley Northwest High School in Overland Park, Kansas.
Youth Sallói worked his way through the youth ranks of Nemzeti Bajnokság I club Újpest Football Club in his home town of Budapest, Hungary beginning in 2005. He was named the U16 and U17 academy during his one season with each team Foreign the 2013/14 season, the U21 team claimed second place in Hungary"s U21 championship with Sallói as a member.
During the 2014/15 academy season, he scored a team-high 21 goals in 28 appearances, including three hat-tricks.
Professional In July 2015, Sallói returned to his former club by signing for the first team of Újpest Football Club, although on an amateur contract. He made his professional debut on 18 July 2015, a day before his 19th birthday.
He scored his first professional league goal exactly one week later in a 3-1 victory over Vasas South Carolina. He also made four appearances for the club in the Magyar Kupa, scoring six goals in the competition. In total, he scored seven goals and four assists in sixteen matches in all competitions.
In league play, he scored one goal in twelve appearances.
On 13 January 2016, it was announced that Sallói had returned to Sporting Kansas City, signing a professional, first-team contract and becoming the club"s fourth all-time homegrown player. He was eligible to be a HGP because of his residence in the area and because he had played for the club"s academy team On 16 March 2014, he appeared in a friendly draw against Gibraltar as part of the team"s preparation for the 2014 Union of European Football Associations European Under-19 Championship.
However, he was not named to the squad for the tournament because of travel restrictions on his visa while he lived in the United States.
He has also trained with the national U21 team Sallói was born in Siófok, Hungary and was raised in Budapest.
He is the son of former professional football player and Hungarian international and current coach István Sallói.
He was a member of the U16, U17, and U21 sides between 2011 and 2014. Sallói was a member of Hungary"s national U18 side from 2013-2014. He was a member of the U18 squad for the Václav Ježek Tournament in 2013 and debuted for the U18 team during the tournament during a 1–0 victory over Ukraine.
