Barry Zito officially announces retirement - McCovey Chronicles

How former A's ace Barry Zito unplugged, rewrote his Giants chapter and stopped being 'more miserable than I've ever been in my whole life' - The Athletic

What's the story behind Barry Zito? : r/SFGiants

Barry Zito announces his retirement - NBC Sports

History of the San Francisco Giants - Wikipedia

Longtime Bay Area pitcher Zito officially retires

Barry Bonds - Wikiwand

Barry Zito announces retirement from baseball - video Dailymotion

Cy Young winner Barry Zito retiring from baseball at 37

Barry Zito announces his retirement - Mangin Photography Archive

Buster Posey: Breaking News, Rumors & Highlights

Game 1 lineup for World Series includes Barry Zito, ace pitcher - McCovey Chronicles