Baseball created a steroids policy in 2002 and toughened it last year.
The details of the steroids policy prompted talk of cover-ups and organized complicity in steroid use.
He was added to the hearing at the request of Major League Baseball and staunchly defended baseball's steroids policies.
Open up that labor agreement and negotiate a tougher steroids policy with the club owners.
When major league baseball players approved a more stringent steroids policy in January, they were said to have believed it mandated a suspension for first-time violators.
You can't say home runs are down this year because they're testing for steroids, and then say the steroids policy isn't working.
In August, after Palmeiro was suspended for 10 days for violating baseball's steroids policy, the committee began an investigation into possible perjury.
The committee is considering whether to propose a single, stringent steroids policy for all athletics in the United States, from high schools through the pros.
"The league's steroids policy holds players responsible for whatever goes into their bodies," Lombardo wrote.
On April 22, Roberts and eight other players were suspended for violating baseball's minor league steroids policy.