Summary: Part A: 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. Part B: In her latest book, Harvard sociologist and professor of education Sara Lawrence-Lightfoot explores how some of life's big endings bring about positive change and personal growth. Whether it's terminating a relationship, changing careers or coming out of the closet, Lawrence-Lightfoot explores how these watershed moments prepare us to tackle future challenges with wisdom and strength. In Exit: The Endings That Set Us Free this award-winning author details indi
