All Blacks and Chiefs prop Angus Ta'avao is battling with switching sides.
Injury issues have forced the Chiefs to move him from tighthead to loosehead in their last two games and Ta'avao admits it hasn't been easy.
But it could be good for him in the long run.
Ta'avao knows the dark arts of the front row are a mystery to most and it's not easy to explain what it takes to switch sides.
"A lot of people don't understand," Ta'avao told Newshub.
"They think it's as simple as switching from blindside flanker to openside flanker, but there are a lot of technicalities.
'It's a whole different side of your body. Imagine going to the toilet if you are right handed and you have to use your left hand."
Injuries have forced the Chiefs to move Ta'avao with mixed results against the Blues and Lions.
It's been tough for Ta'avao. Still the 29-year-old's only spent two weeks working on the left-hand side of the scrum, a position players spend a career perfecting.
"You've got to try to lift the tighthead up, whereas a tighthead, you have to try to put the loosehead down and use more of your body weight.
"So, it's been a bit of an adjustment."
Chiefs coach Colin Cooper is unsure whether he'll continue pushing Ta'avao to wear number one.
"I have to have a think about that and see how he is and how the quality of our ball becomes," he said.
Perseverance could be good for his career and may help his World Cup selection chances.
"In a lot of squads these days there are five props, so you'll have two specialists on each side and a guy who can cover both - so if you can add that string to your bow it could open up doors," Ta'avao said.
But he told Newshub he would prefer the door hinged on the right.
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