Zito beats old A's team as Giants win 8-6 - The San Diego Union-Tribune
Tim Hudson, Barry Zito will square off on Saturday
Left-hander Barry Zito headed for Triple-A Nashville
Giants Pitching Pariah Barry Zito Leads San Francisco to Game One World Series Win
Prospect Retrospective and Career Profile: Barry Zito, LHP, San Francisco Giants - Minor League Ball
Barry Zito continues resurgence, stymies Cardinals in 2013 debut
Barry Zito - Wikipedia
Oakland A's call up Barry Zito from minors – New York Daily News
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
Oakland A's return with questions about outfield, bullpen, Barry Zito – Santa Cruz Sentinel
Ex-Cy Young winner Barry Zito reveals retirement on Players' Tribune
A's, Giants pitcher Barry Zito retiring from baseball as planned – Monterey Herald
Sources: Zito agrees to minor league contract with A's
Could Cy Young winner Barry Zito pitch for Sounds?