[7] His two-year contract includes a club option for a third and fourth year for an undisclosed transfer fee, reportedly around $1.8 million.

On 27 August 2022, he scored his first career hat trick in the Union’s match against the Colorado Rapids, reaching his sixteenth goal of the MLS season.

[13][14] Gazdag made his debut for the Hungary national team on 5 September 2019 in a friendly against Montenegro, as a starter.

On 1 June 2021, Gazdag was included in the final 26-man squad to represent Hungary at the rescheduled UEFA Euro 2020 tournament.

[17] On 14 June 2022, Gazdag scored Hungary's fourth goal as they beat England 4–0 in the UEFA Nations League.