Tosin Amusan is a wonder to behold on the tracks. She dashes like lightning, dusting her peers and wiping past records like tabular rasa. Her appearance in any competition almost always means that the other competitors are destined to watch her back as she sprints to the finish line to breast the champion’s tape. Amusan, the World, Commonwealth and African Champion in the 100m hurdles doubles as a brand ambassador for Globacom.    She is the star of a new television …