WILLIE Mason is now a Hull KR player.

Rovers completed one of their biggest – if not the biggest – signings in their history by announcing Mason as a Robin for the next two years with the option of a third.

The Mail exclusively revealed a month ago that Mason was very interested in signing for Rovers, with Huddersfield also in contention.

Good friend and Hull prop Mark O'Meley advised him to take a contract with Rovers if they offered him one because the Robins were a club on the up.

Mason, who has represented Australia 24 times and New South Wales on 13 occasions, has an option for a third year.

Rovers coach Justin Morgan believes Mason has plenty to offer his side and can't wait to see him play for the Robins next year.

"We are delighted to capture Willie's signature," Morgan told the Mail.

"In terms of international recognition, he is probably right up there with the biggest signings the club has made.

"I'm as excited as anybody else about seeing him run out at Craven Park next year.

"I'm just looking at the rugby side of the signing and he is going to be great for us.

"Willie is going to add some size, experience and height to our pack.

"He has got a presence on the pitch and they are the things he is going to add for me.

"I think he can do more than a job.

"We are delighted he has chosen our club based on the fact he feels he can win trophies with us.

"He has been in very good form for North Queensland Cowboys especially in the middle part of the season.

"Commercially he will add more because he is a huge name."

Rovers' newly appointed chief executive Mike Smith completed the deal with Mason's agent Greg Keenan in London on Saturday before Rovers' final game of the season at Crusaders.

The move is subject to a medical and Mason getting his visa which Smith is confident will be issued in due course.

Smith feels Mason's signing is one of the biggest made by the club and hopes it will generate plenty of commercial business as a result.

"Signing Willie is a fantastic coup for Hull KR," Smith told the Mail.

"It has to rate as one of the biggest signings in the club's history, as well as for Super League too.

"He is one of the biggest names in rugby league and I'm delighted he has agreed to join us for the next two years and possibly a third after that.

"He will certainly add something to the game over here as he is a world class player.

"Willie Mason will put bums on seats and I'm sure the retail department will be kept busy putting his name on the back of plenty of shirts next season."