Naomi Osaka fights back tears as she admits she 'didn't feel fully confident' in herself in Wimbledon defeat to American rising star Emma Navarro

Naomi Osaka found herself holding back tears as she opened up on the crippling self-doubt which set in in her 59-minute second round defeat to Emma Navarro at Wimbledon.

Having beaten Diane Parry in the first round, Osaka was in good spirits and hopeful of a career-best run in SW19, which continues to be the third round after her 6-4, 6-1 defeat on Centre Court today.

'Honestly, I feel like even though in the beginning it was kind of like we were trading games, I don't know why, I didn't feel fully confident in myself,' Osaka said afterwards. 

'I didn't feel like I was playing that well. I guess, like, those doubts started trickling in a lot into my game. Obviously the second set wasn't that great.

'I feel like for me, I don't know... I don't know why those thoughts were so prevalent, yeah.'

Osaka opened the match with an ace but soon lost her groove and it began to feel like every marginal call and deep return was landing in Navarro's favour. 

When the four-time Grand Slam champion looks back on this match, which came on the back of her first Wimbledon win since 2018, she will be left to rue a series of devastating unforced errors.

Credit must go to world No 17 Navarro, who dominated after getting the break to love in the seventh game to take the first set, and then stepping on the gas for a ruthless second.

Navarro, 23, was making her Centre Court debut but showed no nerves at all, thrashing 16 winners to Osaka's 10. 

The victorious 23-year-old will next take on Russian world No 30 Diana Shnaider, who last week beat her en route to claiming the Bad Homburg Open title.

'Naomi's obviously a great player, it's great to have her back,' Navarro said on court.

'I was able to play some good tennis at times – my first time on Centre Court. I've been having a lot of fun on grass. Today was no exception.'

New York-born Navarro, who had never won a main draw match in SW19 before this year, is one to watch on the back of this display. 

The 19th seed settled into her game and dominated the groundstrokes battle, while showing little sweat on her own serve, much to Osaka's frustration, as she won 82 per cent of points on her first serve. 

A 4-0 lead in the second set, which soon became a 5-1 lead, had Osaka resigned to another frustrating end to a grass-court season with her attention now switching to the Olympic Games in Paris.

For Navarro her day was one 'years in the making'.

'There was some specific preparation today in terms of just game plan and how I wanted to take it on mentally,' she said. 'But also I think it's been years of preparation that made me able to feel comfortable and feel like physically and mentally I'm able to take that challenge on.

'So, yeah, today I wanted to play aggressively and push back against her, especially on her serve, make her think a little and feel uncomfortable in her serve. That was a big thing. But, yeah, a lot of years in the making.'