INDIANAPOLIS — The use of human growth hormone is more of a problem in baseball than in football, the president of the NFL Players Association insists.

"We feel it's not something that's common in our space," former defensive back Troy Vincent said Wednesday before the start of the NFL scouting combine.

The NFL and other leagues don't currently test for HGH. Vincent said the question of how soon a reliable test would be available was a topic of discussion at a meeting Wednesday involving commissioner Roger Goodell, NFLPA executive director Gene Upshaw and more than a dozen players.

New England Patriots safety Rodney Harrison was suspended for the first four games of this past season after he admitted using "a banned substance," reportedly HGH, for the purpose of "accelerating the healing process."

But Vincent doesn't believe that many other players in a violent game also are seeking to speed up their recuperation with banned substances. He suggested that recreational drugs are the greater challenge facing the NFL.