WOODLAWN, Md. - Commissioner Roger Goodell says the NFL will insist that its next labour deal with players includes testing for human growth hormone.

After appearing Monday with U.S. Rep. Elijah Cummings at a high school to speak about the dangers of steroid use, Goodell said the NFL needs to do more to keep banned substances out of the sport.

HGH use is prohibited by the NFL, but the league currently does not test for it. Goodell said he thinks players "recognize the importance of" adding HGH tests.

When one student asked why there is more substance abuse in baseball than in football, Goodell replied: "I'm not sure that's true."

Cummings said he talked briefly to Goodell about the NFL lockout. Cummings hopes Congress won't need to get involved.