Through his immense technical skills and his scoring qualities he became a supporter's favourite in Graz.
When GAK played a couple of friendlies in New York in 1959, two of them against Real Madrid, it caused Huberts who was a midfielder, to finally convince New York Hungarians of the German American Soccer League to sign him in 1960.
Huberts was one of only four foreign players in German pro football, and the only Austrian.
Huberts was capped four times for the Austria national team between 1959 and 1960, scoring in his debut in a 2–0 win against Belgium.
With the club change to New York came travel limitations, he was no longer selected for Austria and even when he joined Eintracht Frankfurt he never played again for the national team due to the politics of the clubs not to release foreign players except for big tournaments.