Much like his fellow-Swiss Roger Federer, Stan Wawrinka announced that he will undergo a medical procedure on his knee and will miss the balance of the 2017 season. He released the following statement on social media:

I am sad to announce that after talking with my team and doctor I had to make a difficult decision to undergo a medical intervention on my knee. This was the only solution to make sure I will be able to compete at the top level for many more years.

This is obviously extremely disappointing, but I’m already looking
ahead and planning my recovery. I love this sport and I will work hard to get back to my top level and play many more years. I also want to take this opportunity to thank my fans for sending plenty of messages of support during the last couple of days. I will see you all in 2018!