Monica Seles, 1993
In 1993, then world number one Monica Seles, aged only 19, was competing in a minor tournament in Germany when her life was changed in an instant. During changeover, 38-year-old Gunter Parche leaned over the seats next to the court and stabbed the teenager with a knife as she sat down to towel off and take a sip of water.
“I felt a horrible pain in my back,” she wrote in her 2009 autobiography. “I saw a man wearing a baseball cap, a sneer across his face. His hands were clutching a long knife. He started to lunge at me again. I didn’t understand what was happening.”
Parche was tackled by members of the crowd before he could stab Monica again, leaving her with a wound an inch and a half deep. It was two years until she played competitively again and she only won one major after the incident. She retired in 2008.