Naomi Osaka said she was trying not to feel “like a failure” after her comeback hit another roadblock with a 7-5, 6-0 defeat to former world number seven Danielle Collins in the first round of the Abu Dhabi Open on Tuesday. 

“I say some pretty harsh words about myself. I know the word, but if I say it, it sounds really bad. I felt a little like a ‘failure’, but I don’t want to be too harsh,” Osaka told AFP in the UAE capital after her straight sets defeat.