Keith Lulia has declared himself ready for action against Wigan on Sunday and roared: “Bring it on!”

The close-season signing has yet to feature for the Bulls due to a hamstring strain following his arrival from Newcastle Knights.

But the 6ft 4in Cook Islands international is edging towards full fitness and says he is ready to face Shaun Wane’s side.

Lulia’s availability would be a major boost to Mick Potter after Adrian Purtell was ruled out for six weeks with a chest injury.

The former Penrith centre tore his pectoral muscle during last weekend’s victory at Castleford and a specialist in Manchester has revealed the extent of the injury.

Yet prop Manase Manuokafoa is close to coming back into contention and 24-year-old Lulia insists he is fit to play.

The rangy centre said: “I’ve been running in the past couple of days and have pulled up really well.

“I’ve been training pretty hard and doing a lot of cardio and fitness work.

“It’s up to Mick if he picks me or not but hopefully I’ll get to play this weekend.

“I’m looking forward to it. I don’t bank on someone getting injured for me to get straight in the team because I want to earn my spot.

“It’s just unfortunate for Adrian but hopefully it will work out for me this week if I’m fit, which I feel I am.”

Lulia revealed the extent of the hamstring problem which wrecked his pre-season with the Bulls.

He explained: “It was my right hamstring, which I originally thought was just a little strain but ended up being a 20 centimetre tear.

“That set me back a few weeks but I had an injection of cortisone into the tendon which was giving me a bit of trouble and that settled it down straight away.”

During the Bulls’ pre-season games and two Super League outings, Lulia has been a regular spectator, albeit a frustrated one.

“The lads responded very well to the Catalan defeat at Castleford last week,” he said.

“They showed a lot of desire and learnt from their mistakes the week before.”

The Warriors have an abundance of talent within their ranks, not least mercurial full back Sam Tomkins.

Lulia said: “It will be good to go against the best England has to offer.

“I’ve played with some top players back in Australia and I like to challenge myself.

“I’m ready to break some lines, make some tackles and show what I’m about.”

Meanwhile, James Donaldson will see a specialist on Monday to discover the extent of the knee injury he sustained against Castleford.

Karl Pryce is aiming to shake off a hamstring injury ahead of this weekend’s clash with his former club.

But Potter said he will keep faith with Elliot Kear and Jason Crookes as his starting wingers.