Defending champion Jessica Pegula on the challenge Amanda Anisimova poses in Toronto final.
The Russian talked openly of his struggles after Saturday's win over Jannik Sinner.
The Italian was struggling physically during his loss to Rublev in Montreal on Saturday night.
The 20-year-old says she took a lot from mingling with American stars such as gold medal winners Sydney McLaughlin-Levrone and Gabby Thomas.
The Greek shared the news on social media on Friday.
The Greek sent a message to his father and coach through the media.
The 24-time major champion will take some rest before the US Open.
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