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Hertha's Swiss midfielder Valentin Stocker (L) and Wolfsburg's midfielder Christian Traesch vie for the ball during the German first division Bundesliga football match VfL Wolfsburg vs Hertha BSC in Wolfsburg, on February 22, 2015. AFP PHOTO / RONNY HARTMANN DFL RULES TO LIMIT THE ONLINE USAGE DURING MATCH TIME TO 15 PICTURES PER MATCH. IMAGE SEQUENCES TO SIMULATE VIDEO IS NOT ALLOWED AT ANY TIME. FOR FURTHER QUERIES PLEASE CONTACT DFL DIRECTLY AT + 49 69 650050. (Photo credit should read RONNY HARTMANN/AFP/Getty Images)

Hertha's Swiss midfielder Valentin Stocker (L) and Wolfsburg's midfielder Christian Traesch vie for the ball during the German first division Bundesliga football match VfL Wolfsburg vs Hertha BSC in Wolfsburg, on February 22, 2015.   AFP PHOTO / RONNY HARTMANN

DFL RULES TO LIMIT THE ONLINE USAGE DURING MATCH TIME TO 15 PICTURES PER MATCH. IMAGE SEQUENCES TO SIMULATE VIDEO IS NOT ALLOWED AT ANY TIME. FOR FURTHER QUERIES PLEASE CONTACT DFL DIRECTLY AT + 49 69 650050.        (Photo credit should read RONNY HARTMANN/AFP/Getty Images)