Star pitcher Andy Pettitte, who on Tuesday testified that his former friend and teammate Roger Clemens had confided in him about his use of performance-enhancing drugs, is expected to return to the stand Wednesday morning.

Pettitte, a 39-year-old pitcher who played for the New York Yankees and Houston Astros, is considered a key witness in the prosecution of Clemens on charges he lied to Congress in 2008 when he denied taking performance-enhancing drugs.

Answering most questions with single-word responses, Pettitte never made eye contact with Clemens until asked to identify baseball’s most decorated pitcher near the end of his questioning by prosecutors.

Pettitte’s testimony is considered key to the government’s case that “The Rocket” lied to Congress in 2008 when he denied ever having taken steroids or Human Growth Hormone (HGH).

As he previously told congressional investigators, Pettitte testified in the District’s federal court that Clemens told him in 1999 or 2000 that he had used HGH to help him recover from injuries and intense workouts.

Read the Post’s full coverage of Tuesday’s testimony.

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