'Really not a good day': Naomi Osaka pulls out of Canadian Open with back injury

By Issy Ronald, CNN

Updated 0938 GMT (1738 HKT) August 10, 2022

Osaka was forced to pull out of her opening round match at the Canadian Open.

(CNN)Naomi Osaka was forced to withdraw from her opening match of the Canadian Open on Tuesday due to a back injury, further hampering her preparations for the US Open.

While trailing Estonia's Kaia Kanepi 7-6 (4) 3-0, the four-time grand slam champion received treatment on the court but eventually retired and left the court in tears.«I felt my back from the start of the match, and despite trying my best to push through it, I just wasn't able to today,» Osaka said afterwards, according to the WTA. «I'd like to pay credit to Kaia for playing well and want to wish her all the best for the rest of the tournament.»Injuries have plagued Osaka's season. She withdrew from the semifinals of the Melbourne Summer Set 1 tournament in January with an abdominal injury and did not compete at the Italian Open and Wimbledon due to an Achilles injury. Read More«Today is just really not a good day,» the former world No.1 later said on Twitter.Osaka is currently the world No. 39.The National Bank Open marked Osaka's second tournament since the French Open in May following her return to competition at the Mubadala Silicon Valley Classic last week where she reached the last 16 and was defeated by Coco Gauff.«When I was playing the match just now I realized that I've been letting people call me mentally weak for so long that I forgot who I was,» Osaka said after that match last week, according to the WTA. «I realized that that's something that I do. I lost the match today, but I feel really confident in who I am. I feel like the pressure doesn't beat me. I am the pressure. I'm really happy with