Berdych says, "If I have a problem, it's this muscle."
Berdych was talking to Czech public radio Sunday just hours after losing the Wimbledon final to Rafael Nadal 6-3, 7-5, 6-4.
"The windy conditions contributed to it," Berdych said.
On Facebook, the Czech team says Berdych will take a three-week rest after his first Grand Slam final.
The Czech Republic's No. 2, Radek Stepanek, was ruled out of the July 9-11 Davis Cup tie in Coquimbo on clay with a left knee injury.