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VIENNA, AUSTRIA - July 06: Virgil Van Dijk of Celtic Glasgow controls the ball during the Pre Season Friendly between SK Rapid Wien and Celtic Glasgow at Gerhard-Hanappi-Stadium on July 6, 2014 in Vienna, Austria. (Photo by Christian Hofer/Getty Images)

VIENNA, AUSTRIA - July 06: Virgil Van Dijk of Celtic Glasgow controls the ball during the Pre Season Friendly between SK Rapid Wien and Celtic Glasgow at Gerhard-Hanappi-Stadium on July 6, 2014 in Vienna, Austria.  (Photo by Christian Hofer/Getty Images)