Titanium knee

Wow, titanium "I-knee-do" to the groin ... I really do hope this left a lasting and painful impression.

Australia -- A 72-year-old Olympic swimming great reportedly fought off an intruder who threatened to kill her, according to int.iol.co.za.

The 72-year-old Australian swimming legend claimed she might have "lost it" when she confronted two youths who woke her when they entered her daughter's home in Noosaville, Queensland. She said a young male grabbed her around the throat threatened to kill her.

"With that I grabbed him around the ear and hair and kneed him in the groin," she said. "I have got a titanium knee so it must have hurt him," she added.