I am calling a rest api which returns the data in json array of object format like this

Now when I call this rest api from my typecsript code and print on console data received i get this
gameRecord: Fifa = new Fifa(); // this is defined globally in ts class
this.fifaService.fetchGameRecord(gameId).subscribe(
          data => {
            this.gameRecord = data;
            console.log(this.gameRecord);
          }
        );
Now I want to get the wonBy, kashScore attributes value from this object.
But I get undefined error on console, I don't know why
gameRecord: Fifa = new Fifa();
this.fifaService.fetchGameRecord(gameId).subscribe(
      data => {
        this.gameRecord = data;
        console.log(this.gameRecord.kashScore);
      }
    );
Here Code Definations,
export class Fifa {
    gameId: number;
    kashScore: number;
    samScore: number;
    wonBy: string;
    createUserId: number;
    lastModifiedUserId: number;
    creationDate: Date;
    lastModifiedDateTime: Date;
    sessionId: number;
}
And my service file code
fetchGameRecord(gameId: number): Observable<Fifa>{
    const fifaUrl = `${this.baseUrl}/getGameDetail/${gameId}`;
    return this.httpClient.get<Fifa>(fifaUrl);
  }



