Skip in Skip x Embed x Share CLOSE The 20-year-old Zverev stunned Federer at the Rogers Cup final in Montreal. USA TODAY Sports
Roger Federer of Switzerland serves against Robin Haase of the Netherlands (not pictured) during the Rogers Cup tennis tournament at Uniprix Stadium on Aug. 12. (Photo: Eric Bolte-USA TODAY Sports)
Roger Federer has withdrawn from the Western & Southern Open, this week's tour stop in Cincinnati.
The tournament announced Monday that Federer withdrew due to a back injury.
"I am very sorry to pull out of the Western & Southern Open as I always enjoy playing here," Federer said in a statement, according to the tournament. "Cincinnati has some of the best fans in the world and I am sorry I will miss them. Unfortunately, I tweaked my back in Montreal and I need to rest this week."
Seven-time champion Roger Federer has withdrawn from 2017 tournament due to a back injury. #CincyTennispic.twitter.com/YcNpDuhvvX — W&S Open (@CincyTennis) August 14, 2017
Federer lost to Alexander Zverev 6-3, 6-4 in the Rogers Cup final Sunday in Montreal.
His withdrawal means that Rafael Nadal will return to No. 1 in the new ATP rankings released Aug. 21. Nadal, who has spent 141 total weeks in the top spot, will be back at No. 1 for the first time since July 6, 2014.
More: Roger Federer's Western and Southern Open withdrawal leaves just Nadal among top 6
Nadal is the top seed this week in Cincinnati.
Federer wasn't sure after Sunday's final if he'd play in Cincinnati.
“I’ll see how I feel after five days of playing, if I’m ready to play in Cincy next week or not,” he said, according to the Associated Press. “I felt all right all week.
“I had a bit of muscle pain, aches and pains here and there, just because it’s back on the match courts, on the hard courts. After vacation and practice, it’s always a bit of a shock for the body.”
The U.S. Open begins Aug. 28.