(FILES) This file photo taken on May 11, 2016 shows head coach of Eastern Football club Chan Yuen-ting (C) smiling after a team training session in Hong Kong. Hong Kong's Chan Yuen-ting will smash another hole through football's glass ceiling when she makes history in the AFC Champions League on Wednesday -- but it couldn't be a tougher debut for the trailblazing female coach. - TO GO WITH AFP STORY 'FBL-ASIA-C1-HKG-CHAN-GENDER' FOCUS BY AARON TAM / AFP / ISAAC LAWRENCE / TO GO WITH AFP STORY 'FBL-ASIA-C1-HKG-CHAN-GENDER' FOCUS BY AARON TAM