The NFL is insisting on human growth hormone testing as part of the new collective bargaining agreement with the players, according to commissioner Roger Goodell. "The integrity of the NFL is critical," Goodell said. "We have to make sure that we're doing everything possible to have the best drug program in sports. Making changes to our program is critical. We have done that over the years and we have to do more, including the inclusion of HGH testing." Goodell said the testing was discussed with the NFL Players Association before labor talks broke off March 11 and the lockout began. The players union has resisted HGH testing in the past because it requires a blood test, not a urine one.