TRANSFER QUIZ: Can you recall how much Celtic paid for these stars over the last 10 years?

Celtic have made plenty of signings over the last 10 years, some of whom have commanded large fees. The Hoops made three permanent signings over the summer, bringing in Vasilis Barkas, Albian Ajeti and David Turnbull, and today’s quiz will test your knowledge on some Celtic arrivals over the last 10 years...