Yankees' 'Core Four' is dwindling to one - Los Angeles Times
Andy Pettitte returns to Yankees for another year
Andy Pettitte can turn World Series in New York Yankees' favor by beating Philadelphia Phillies – New York Daily News
Yankees Bring Back Team Icon in Advisory Role, Sports-illustrated
Yankees LHP Andy Pettitte to retire after season, Sports
Andy Pettitte – Toolbox Ministries
The 10 greatest moments of Andy Pettitte's career (#5-1) - Pinstripe Alley
Andy Pettitte returns in pinstripes
Yankees Hint At A Major Shift With Addition Of Andy Pettitte
Andy Pettitte brings 'different perspective' as Yankees adviser
The Greedy Pinstripes: My Thoughts on the Career of Andy Pettitte
New York Yankees fans ecstatic to see Andy Pettitte added as advisor to Aaron Boone
Yankees bring on five-time World Series champion Andy Pettitte as pitching adviser