Fiji boxer Ubayd Haider has died more than two weeks after collapsing at the end of an IBO Asia Pacific Super Featherweight title fight against Australia-based Chinese boxer Runqi Zhou. The 25-year-old Haider, formerly known as Nathan Singh, had been in a coma in the Lautoka Aspen Hospital since the fight in Nadi, Fiji on October 26. “Thank you for …