Andy Pettitte once revealed that Roger Clemens had introduced him

Clemens rejoins Yankees

Andy Pettitte - Wikipedia

Andy Pettitte – Society for American Baseball Research

Congress asks Clemens, Pettitte to testify

Giglio: Andy Pettitte's Legacy? Plain And Simple — A Winner - CBS New York

Andy Pettitte can expect questions about retrial of Roger Clemens during his stay at Double-A; Thunder roll past Erie 11-4

Roger Clemens Through The Years – Hartford Courant

Clemens hugs Pettitte, who testified against him

Andy Pettitte on first Hall of Fame ballot

Sons of former Astros Roger Clemens, Andy Pettitte and Craig Biggio all starring in Texas baseball playoffs

Baseball Hall of Fame: Andy Pettitte's case for Cooperstown

Yankees' Andy Pettitte announces retirement - The San Diego Union-Tribune

Clemens throws a curveball