Professional athletes-- as well as weekend warriors-- often end up needing knee replacement surgery. Tennis great Billie Jean King, 68, won 39 Grand Slam titles and defeated Bobby Riggs in the famous 1973 "Battle of the Sexes" match. But when she found herself taking a cab two blocks to the gym, she decided it was time to undergo the dreaded procedure. King and Prime Time Radio host Mike Cuthbert-- a knee-surgery veteran himself-- discuss King's storied career, her recovery and what it means for her game.
Also of interest: 5 tips for successful hip replacement surgery.