Cast on dara torres wrist?

Question

On the Tonight Show she was wearing a cast/bandage on her wrist. Why?

Answer 1

"She is also wearing an air cast on her left thumb and wrist for a tendon injury she sustained when she jammed her thumb on the wall in her last race in Beijing."

http://www.sun-sentinel.com/sports/other...

Answer 2

To protect her wrist I guess. Many athleles do that, too.