(LtoR) China's Zhang Peimeng, Zambia's Gerald Phiri, Guyana's Adam Harris and Germany's Lucas Jakubczyk compete in the Men 60 m Semi-Final event at the IAAF World Indoor Athletics Championships in the Ergo Arena in the Polish coastal town of Sopot, on March 8, 2014.  AFP PHOTO / JANEK SKARZYNSKI        (Photo credit should read JANEK SKARZYNSKI/AFP/Getty Images)