JORDAN Williams forced Hallam Amos onto the wing with Wales Under-20s and hopes to do the same at the Dragons after returning home with "unfinished business".

The 24-year-old instinctive speedster has headed for Rodney Parade from Bristol with the goal of wearing 15 on his back.

Williams was a member of the Wales Under-20s side that finished as runners-up to England in the 2013 Junior World Championship, and started at full-back with Amos having to settle for a place on the flank.

Those roles are likely to be reversed at Rodney Parade with Amos fresh from impressing at 15 for Wales in all three summer Tests against South Africa and Argentina.

Williams wants to put the heat on the World Cup hopeful at Rodney Parade – suggesting rock-paper-scissors for first dibs at full-back – but won't grumble as long as he's in Bernard Jackman's XV.

"My preferred position is full-back but I am happy to play wherever is best for the team," said Williams, who will also have former Springbok Zane Kirchner as a rival in the back field.

"Teams need competition and players need to be kept on their toes. You have to train well, if you don't then someone will get picked ahead of you."

That is a fate that Williams doesn't want to experience again after getting splinters from the Scarlets' bench.

The livewire back was a Wales tourist in South Africa in 2014 but wasn't able to press for a cap on his return after finding chances hard to come by in Llanelli.

"I probably hit a brick wall and had to start again. I went back to the Scarlets and things didn't work out, I didn't play and had to go and play semi-pro," he said.

"I ended up doing a year with Wales sevens, and it was really beneficial to go away and concentrate on some aspects of the game.

"I enjoyed that time with Gareth Williams in the sevens but then had the offer to go to Bristol and restart in terms of my rugby.

"When you're not picked and have to go and play elsewhere, it is frustrating. Going to Bristol was a fresh start and out of the goldfish bowl. I want to prove some people wrong and I am looking forward to it."

"I've got a bit of unfinished business coming back to Wales and I wouldn't have been able to achieve what I wanted to, playing for Wales, at Bristol," he continued.

"It was a frustrating three years before last season, which was good for me and I learnt a lot under Pat Lam. I developed a lot of my game from being able to play week in, week out.

"I have grown up a lot from moving over to Bristol; a lot of people said that I was a home bird but I took a risk going there and got back into enjoying rugby again.

"Pat and Conor (McPhillips, assistant) kept us on our toes, which was really handy at times. If you didn't train well then they would pull you in the office."

Williams' time in the west country led to an impressive showreel and the counter-attacking back hopes to show fast feet on his return.

"Hopefully I will bring high-tempo, attacking rugby," said Williams.

"I like to get my hands on the ball, the way that Bristol played last year suited me to a T and hopefully we can produce some of that rugby.

"There's a big challenge ahead for me and the whole group, we are looking forward to it."