3. Potential
The Turkish international has consistently developed over the past few seasons. Çalhanoğlu was worth €700,000 at HSV before seeing his value increase to €3 million and then €22.45 (transfermarkt.com) million in just two years. The Turkish international has managed to take on every challenge presented to him and establish himself as an influential player at each club he has joined. The 21-year-old already has 18 goals and 14 assists for Bayer and has established himself as a first-team regular in the Turkish national side.
