Pete Sampras is arguably the greatest tennis player ever, a man whose hard-nosed work ethic led to an unprecedented number one world ranking for 286 weeks, and whose prodigious talent made possible a record-setting fourteen Grand Slam titles. While his more vocal rivals sometimes grabbed the headlines, Pete always preferred to let his racket do the talking.

Until now.

In A Champion's Mind, the tennis great who so often exhibited visible discomfort with letting people "inside his head" finally opens up. An athletic prodigy, Pete resolved from his earliest playing days never to...