 Haydar finished in a tie with Byron Ritchie for the team scoring lead with a pair of goals and four assists.Upon completing a single season in the DEL on June 9, 2014, he signed a one-year contract, along with former Wolves teammate, Jason Krog, in the Kontinental Hockey League with Croatian club, KHL Medveščak Zagreb.In the 2014–15 season, having recorded just 1 assist in 4 games, Haydar opted to leave the club.