Ajax Amsterdam manager Frank de Boer controls the ball during a training session at Celtic Park Stadium in Glasgow, Scotland October 21, 2013. Celtic will play against Ajax on Tuesday in a Champions ... more 
Ajax Amsterdam manager Frank de Boer controls the ball during a training session at Celtic Park Stadium in Glasgow, Scotland October 21, 2013. Celtic will play against Ajax on Tuesday in a Champions League soccer match in Glasgow. REUTERS/Russell Cheyne (BRITAIN - Tags: SPORT SOCCER) less 
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Reuters | Photo By RUSSELL CHEYNE / REUTERS
Mon, Oct 21, 2013 2:20 PM EDT