Wales prop Paul James says he is happy to play out of position in order to represent his country.
James, a loosehead prop by trade, could win his 47th cap against Argentina at the Millennium Stadium this weekend after proving an able deputy at tighthead when Adam Jones limped off during last Saturday's defeat to South Africa.
Wales coach Warren Gatland has other tighthead options in his squad in Scott Andrews, Aaron Jarvis and Samson Lee, but 31-year-old James could be asked to do the job.
"You do whatever you need to do," James said. "If that means playing on the tight to help Wales out, then yes.
"I don't class myself as a tighthead, but if you get the opportunity to put on a Welsh jersey you will stick any number on your back.
"If I am asked to do it, I will do it. If I can help Wales out and do a job there, I will do it. We have got other tightheads in the squad as well. We will see what happens.
"With the law change of having four props in the match-day squad, you are just picked as a loosehead now, so I thought those days of playing on the tighthead were behind me.
"But I was told I was going on there (last Saturday), so it was a case of 'okay!' It was fine. I have dabbled a bit there in the past, so it wasn't too much of a shock.
"It is harder if you have to swap over, but the bonus of playing international rugby is you have got guys like Alun-Wyn (Jones) and Warby (Sam Warburton) pushing behind you as well, which makes a massive difference. It helps and gives you confidence.
"It was the first time on the tighthead under the news laws for me on Saturday, but it went okay."