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Schalke's midfielder Roman Neustaedter (R) and Cologne's Nigerian striker Anthony Ujah vie for the ball during the German First division Bundesliga football match Schalke 04 vs 1 FC Koeln, in Gelsenkirchen, western Germany, on December 13, 2014. AFP PHOTO / PATRIK STOLLARZ RESTRICTIONS - DFL RULES TO LIMIT THE ONLINE USAGE DURING MATCH TIME TO 15 PICTURES PER MATCH. FOR FURTHER QUERIES PLEASE CONTACT DFL DIRECTLY AT + 49 69 650050 (Photo credit should read PATRIK STOLLARZ/AFP/Getty Images)

Schalke's midfielder Roman Neustaedter (R) and Cologne's Nigerian striker Anthony Ujah vie for the ball during the German First division Bundesliga football match Schalke 04 vs 1 FC Koeln, in Gelsenkirchen, western Germany, on December 13, 2014.  AFP PHOTO / PATRIK STOLLARZ

RESTRICTIONS - DFL RULES TO LIMIT THE ONLINE USAGE DURING MATCH TIME TO 15 PICTURES PER MATCH. FOR FURTHER QUERIES PLEASE CONTACT DFL DIRECTLY AT + 49 69 650050        (Photo credit should read PATRIK STOLLARZ/AFP/Getty Images)