James Hook is ready to flex his new muscles to nail down the number ten Wales shirt. after working flat out in training and adding almost four kilos in muscle.
Now he hopes that bulk can help give him the edge over rival Stephen Jones when it comes to facing the world's best in the Invesco Perpetual Autumn Series.
Hook said: "There's a lot of competition at fly-half but it's now time for me to step out of the development stage and do it for real.
"I've been working hard and got huge gains from doing weights, speed and fitness work. It's the strongest I've ever felt and I'm really happy.
"At the Ospreys we've been pulling trucks and flipping tractor tyres during pre-season which was good fun. Our new fitness coaches Alex Lawson and Mike McGurn have been great and we're being monitored all the time. The fitness work has really benefited us."
Hook has found himself bowing to the experience of British Lion Jones for the coveted number ten jersey under the tenure of Warren Gatland.
But the 23-year-old showed his versitility at full-back on Wales' summer tour against the Springboks, when Jones retained his place, and Hook says that fighting for his place in the side is perfect motivation.
"Competition between Stephen and myself is nothing new. It's been there for the last few years. But I only played 18 minutes at fly-half in South Africa and now I need to impress.
"What I do at regional level will count for Wales selection and the Ospreys have some huge games early in the season. So my aim is to send a message to Warren by producing some good performances. I really want to start against South Africa on November 8."
Wales face all three southern hemisphere giants - South Africa, Australia and New Zealand - as well as Canada this November. And 27-cap Hook believes Wales can claim a major scalp.
He added: "We've got to take confidence from the Grand Slam and the way we matched South Africa in the second Test on tour. So we know we're not a million miles away from success against them."
Meet the members of the WRU's inaugural Youth Board - after an online selection process which saw a host of high calibre candidates submit video applications the WRU has made its first 15 appointments.The board is made up of individuals aged between 16 and 21, and will meet for the first time at Principality Stadium on Monday 15th February.
The Wales Women's team headed to Dare Valley Country Park on a team bonding exercise as the entire squad got together for the very first time in preparation for this season's Six Nations championship which kicks off on Saturday with a clash against defending champions Ireland, in Donnybrook.
Wales Head Coach Warren Gatland discusses his team selection for the opening round of the RBS 6 Nations where he leads his side against Ireland, on Sunday. As WRU TV's Luke Brodley discovers, Gatland is fully aware of the challenges the defending champions pose
WRUTV caught up with Wales Women captain Rachel Taylor at the RBS 6 Nations launch and how a good crowd really helps boost the girls performance. Tickets for all three Women's home games at The Gnoll, Neath are available from www.wru.wales/tickets