Head Head International GmbH (Switzerland) Gravity MP 2021 U 233821 Unstrung without Coverb Size 1 : Amazon.de: Sports & Outdoors
Roger Federer, of Switzerland, taps his head with his racquet during his match against Andre Agassi, of the United States, at the U.S. Open tennis tournament in New York, Wednesday, Sept. 8, 2004. (AP Photo/Kathy Willens Stock Photo - Alamy