There will be a new winner crowned this year in Flushing Meadows.
Defending U.S. Open champ Stan Wawrinka will miss the remainder of 2017 with a knee injury. The fourth-ranked Wawrinka finishes the 2017 season with a 26-11 record.
"After sitting together with my team and considering all options, I have made the very difficult decision to end my 2017 season as I need to undergo medical intervention on my knee," said Wawrinka. "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 for many more years. I also want to take this opportunity to thank my fans who have sent plenty of messages of support during the past few days."
Wawrinka joins the fifth-ranked Novak Djokovic on the sidelines, after Djokovic announced he would be missing the remainder of the year as well with an injured right elbow.