Tennis superstar Naomi Osaka just shared a major life update -- she's expecting her first child ... and TMZ Sports has confirmed it's with rapper Cordae!!
The 25-year-old made the announcement just minutes ago ... saying, "The past few years have been interesting to say the least, but I find that its the most challenging times in life that may be the most fun. These few months away from the sport has really given me a new love and appreciation for the game I've dedicated my life to."
Osaka shared a picture of a sonogram on Twitter ... adding, "I realize that life is so short and I don't take any moments for granted, everyday is a new blessing and adventure. I know that I have so much to look forward to in the future, one thing I'm looking forward to is for my kid to watch one of my matches and tell someone, 'that's my mom,' haha."
Osaka -- who went public with Cordae in 2019 -- says she will not be competing in the meantime ... but plans to return for the Australian Open in 2024.