HUDDERSFIELD Giants have explained their reasons for allowing Darrell Griffin to join Leeds Rhinos.

The newly-crowned Super League champions have today finally confirmed the 30-year-old former England prop has signed a three-year Headingley deal.

Griffin has made the move despite having a year remaining on his Huddersfield contract, but Giants managing director Richard Thewlis has made it clear the powerful front-row forward has moved with the club's full blessing.

"We are sorry to see Darrell move on and thank him for his services to the Giants in his time here," said Thewlis.

"We were approached mid-season by Darrell's manager to extend his stay for a further three years, but we were unable to agree terms.

"At that point he asked for permission to explore the marketplace, which we granted, and a deal was struck with the Rhinos for him to leave us at the end of the season. We wish him every success."