The girls want to go to the Galatasaray-Trabzon match. They say to Yasin that they need to go to Trabzon. However, later when we see them on TV, the score shows Galatasaray's (GS) name first which means the match is in Istanbul not in Trabzon.
When the girls go to the football match, the jerseys they are wearing are those of the opposing Galatasaray team and not the local team, Trabzonspor.