Answer the questions at the end based on the text.

(CNN) -- A federal appeals court has upheld an obstruction of justice conviction against Barry Bonds, according to court documents released Friday. The court ruled that the evasiveness of the testimony the former baseball star gave to a grand jury investigating sales of performance-enhancing drugs was sufficient to convict him.

In an opinion filed by the U.S. Ninth Circuit Court of Appeals, Judge Mary M. Schroeder said the three-judge panel rejected Bonds' contention that he could only have been indicted for obstruction if his testimony had been flatly false. Attorneys for Bonds had argued that Bonds' statements to the grand jury were factually true, and that language in the federal statute under which he was charged is unconstitutionally vague.

The appeals court rejected that argument.

"When factually true statements are misleading or evasive, they can prevent the grand jury from obtaining truthful and responsive answers," Schroeder wrote. "They may therefore obstruct and impede the administration of justice within the meaning of the federal criminal statute."

Bonds' testimony in December 2003 was part of an investigation that targeted his personal trainer, Greg Anderson, and employees of the California drug testing laboratory known as the Bay Area Laboratory Co-operative, or BALCO.

The testimony that led to Bonds' conviction came when a grand jury prosecutor asked Bonds whether Anderson ever gave him "anything that required a syringe to inject yourself with."

Bonds told the grand jury that only his personal doctors "ever touch me," and he then veered off the subject to say he never talked baseball with Anderson.

1. What was Barry Bonds convicted of?
2. What sport did Barry Bonds play in?
3. What drugs was he convicted of using?
4. Who was Bonds personal trainer in 2003?
5. Who else did the investigation target?
6. What did Bonds attorney argue?

Numbered answers:
1. obstruction of justice
2. baseball
3. unknown
4. Greg Anderson,
5. employees
6. that Bonds' statements to the grand jury were factually true,