South Sydney ace Nathan Merritt is expecting more of the same from representative selectors despite setting the NRL alight with a stunning eight tries in two games.

Merritt's scintillating form since moving to fullback from the wing bagged him five four-pointers against Parramatta last week and another three in Sunday's 47-18 thrashing of Canberra.

The 28-year-old leads the NRL's tryscorers with 21, a familiar position after taking the season award with 22 when Souths finished last in 2006.

Rabbitohs boss Shane Richardson again expressed disbelief that Merritt is yet to play State of Origin or Test football after the Canberra Stadium victory.

But Merritt, who was represented NSW City Origin this year, isn't getting his hopes up.

"I'm pretty much over that stuff now," he told reporters on Monday.

"It's been a couple of years so it doesn't bother me anymore, I'm just trying to focus on these (last) three games.

"You never know what could happen with injuries and stuff like that, you could get selected one day and I'll put my hand up if I ever get the chance."

Merritt said being constantly overlooked for higher honours had not weighed on his mind.

"I used go out there still with the same attitude to play and turn up for Souths each week," he said.

"It's not in my hands mate, I just go out there and do what I can do."

Captain Michael Crocker backed Merritt's claims for a possible spot in the Kangaroos squad for the Test against New Zealand in Newcastle in October and the Four Nations tournament in the UK.

"He's had really good players in front of him that have been in really well-performing teams, so that probably has hurt him a little bit," Crocker said.

"But he is a gifted athlete and he has been for a long time and he definitely deserves those honours."

The Rabbitohs' three straight wins, and Newcastle's loss to the Warriors on Saturday, have reignited the race for top-eight spots.

Souths take on North Queensland on Friday night before tough away games to Brisbane and the Knights.

Following halfback Chris Sandow's comment that those sides should be "shaking in their boots", Merritt said there was a fear factor in a side that had scored 137 points in three weeks.

"We're pretty unpredictable so teams will probably fear playing us but, at the same time, it's a challenge for them so they'll be looking forward to playing us," Merritt said.

"There's a lot of buzz going around but we're not trying to get too far ahead of ourselves.

"If we win this week it's another step towards the finals.

"They're quality teams that we're going to play, so if we can win those three we know we're capable of beating anyone in the finals."

The Rabbitohs expect to have injured brigade Rhys Wesser, Ben Lowe and skipper Roy Asotasi available before the end of the regular season.

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