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GLASGOW, SCOTLAND - OCTOBER 31: Scott Brown of Celtic and Arjen Robben of Bayern Munich battle for the ball during the UEFA Champions League group B match between Celtic FC and Bayern Muenchen at Celtic Park on October 31, 2017 in Glasgow, United Kingdom. (Photo by TF-Images/TF-Images via Getty Images)

GLASGOW, SCOTLAND - OCTOBER 31: Scott Brown of Celtic and Arjen Robben of Bayern Munich battle for the ball during the UEFA Champions League group B match between Celtic FC and Bayern Muenchen at Celtic Park on October 31, 2017 in Glasgow, United Kingdom. (Photo by TF-Images/TF-Images via Getty Images)