In 2013 at the Australian open Serena Williams was defeated by up and coming star Sloane Stephens which snapped a 20 match win streak by Serena. During the match Serena famously lost her cool and smashed her racket in frustration as seen here: https://www.youtube.com/watch?v=plnDiYM0mVw
 
With that said, this is the racket that Serena took her frustrations out. It has been photo matched so there is absolutely no question to authenticity. Famously a racket that Serena smashed in 2018 sold in auction in 2019 for $20,910