Nearly two dozen scientists and lab directors from around the world have signed a letter sent to the NFL and the players' association stating the current test for human growth hormone is safe, scientifically reliable and appropriate for use in professional sports leagues.

The letter, obtained by The Associated Press, was dated Oct. 3 and sent to NFL Commissioner Roger Goodell and union Executive Director DeMaurice Smith.

The NFL and the players agreed to begin blood testing for HGH as part of their new collective bargaining agreement, but only if the union agreed to the methods. The union has delayed implementing the test, asking for more scientific data to prove it is reliable.

CURRY TRADED TO RAIDERS: The Oakland Raiders agreed to acquire linebacker Aaron Curry from Seattle on Wednesday, two years after the Seahawks selected him fourth overall in the draft. Curry failed to live up to the high expectations of being a high draft pick and lost his starting job earlier this year. The Seahawks decided to cut ties after 21/2 seasons, acquiring a 2012 seventh-round pick and a conditional fifth-rounder in 2013 for a player once considered a "can't miss" star.

JETS COMPLETE MASON DEAL: Veteran wide receiver Derrick Mason was sent packing to Houston after the Jets completed a trade with the Texans on Wednesday for an undisclosed draft pick.

PRYOR FINALLY BACK ON FIELD: Terrelle Pryor has spent the past five weeks attending quarterback meetings, doing individual drills and learning about what it takes to play quarterback in the NFL. With his suspension now complete, Pryor finally got the chance Wednesday to practice once again with his new Oakland Raiders teammates.

BROWNS' BENARD OUT AFTER ACCIDENT: Browns defensive end Marcus Benard has been lost for the season with a broken hand sustained when he crashed his three-wheel motorcycle. Team spokesman Neal Gulkis said Benard will spend Wednesday night at the Cleveland Clinic, his third night in the hospital since wrecking his motorcycle shortly after the team completed its first workout following a bye week. Brooklyn (Ohio) Police estimated Benard was thrown nearly 80 yards after smashing his Can-Am Spyder motorcycle into a guardrail.

MODELL'S WIFE DIES: Patricia Modell, the wife of former NFL team owner Art Modell and a longtime television actress, has died. She was 80. Mrs. Modell was pronounced dead around 1:30 p.m. on Wednesday afternoon, the Baltimore Ravens announced after being contacted by Modell's son. She had been hospitalized for around five months.