Ronaldo, Neymar & Tierney - Celtic star on mixing with Champions League elite

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Highly-rated Celtic defender Kieran Tierney reacts to being named in a website's 'team of the Champions League group stages' list and gives his thoughts on the secrets behind Celtic's incredible 69-match unbeaten run.

Watch Football Focus on Saturday, December 16 at 1200 GMT on BBC One, and the BBC Sport website.

Scottish

15 December 2017