Kort is a pupil of Pogoń, he also played – borrowed – in the fleet of Świnoujście and Bytów Bytów. The best of his career was the 2016/17 season, in which he scored six goals in 24 games
. The past games were less successful for him and he was put on the transfer list by Pogoń. However, he came cashless to Wisła, because he had previously terminated the contract with the Szczecin club.
In Krakow, Kort is cared for by Maciej Stolarczyk, who was sports director of Pogoń before taking on the post of Wisła coach
"David, I know very well, with great potential and I want to develop this potential, he another type of player we have in the locker room, I want him to strengthen the rivalry of the team, "said Stolarczyk
Kort is the fourth player to be taken over by the Krakow club this summer. Wisła was previously supported by goalkeeper Mateusz Lis from Lech Poznań (recently loaned to Raków Częstochowa), left defender Marcin Grabowski from the reserves of Lech Poznań and wingman Asmir Suljic from Videotonu Szekesfehervar. In addition, Jakub Bartosz returned from letting to Sandecja, Nowy Sącz, and Rafał Pietrzak from Zagłębie Lubin.