When a proud Oluwatobiloba Ayomide Amusan (simply Tobi Amusan) climbed the podium in faraway Eugene, Oregon in the United States, as the world champion in women 100m hurdles, not a few equally proud Nigerians mounted with her in spirit. She had just set a new world record at 12.12s breaking Keni Kendra Harrison’s 27-year record and leaving legend Michael Johnson …