Along Lleyton Hewitt in double for the last tournament of his career at the Australian Open, Sam Groth made a double fault to gave the break to their opponents, on what was probably the last serve of his career. His racquet didn't survived to that.
Nicolas Mahut missed that one. He served right in the head of his partner Pierre-Hugues Herbert during the double final of the Australian Open. All is fixed at the end with a little kiss.
Breaking one racquet might be called careless, but to break four... Marcos Baghdatis destroys four racquets en route to a four-set loss to Stanislas Wawrinka.