Gareth Baber has challenged Simon Humberstone to seize his opportunity at Cardiff Blues.
The 26-year-old Pontypridd fly-half made his regional debut against Worcester Warriors in the LV=Cup last weekend and is poised to have another chance against the Ospreys on Friday.
Rhys Patchell has been ruled out of the clash with a shoulder injury, while Gareth Davies is rated 50-50 after suffering a groin strain.
That leaves semi-professional Humberstone as the only fit fly-half candidate training with the Blues and Baber reckons the former UWIC star is playing for a full-time future.
"Rhys has a bit of a problem with his shoulder and Gareth picked up a slight strain last week," said Baber.
"Gareth is only a slight strain it's just a question of whether he will win the fitness race for this weekend. It's not as bad as first thought - there has been better news over the last few days.
"But we have Simon Humberstone who performed well and has impressed us enormously since he has come in - a lad who has being playing in Pontypridd but taken a step up here.
"He is quite capable of holding a position here and it's up to him. He's been given an opportunity and he needs to put in performances.
"When you're a young fella and are given an opportunity like this you have to get in and take it. This could be the opportunity he has been waiting for. He has an opportunity to get a contract."
And Baber expects a full-blooded Welsh derby at the Liberty Stadium, despite the lack of stars due to international duty.
"It's a local derby; it will be physical and are planning around how they play the game," said Baber.
"There will be energy, edge, two teams that know each other well and a lot of competition between the group. A lot of the boys would have played each other through the age-grades and they know each other well. We're hoping for a good crack at them on the weekend."
Coach Richard Hodges is hoping Wales U20 can put a disappointing campaign behind them when they tackle Japan tomorrow as they look to finish the U20 Championship strongly to secure a good seeding for next year's tournament.
Wales U20 coach Richard Hodges is targeting three wins from three games in the Under 20 Championship after suffering defeat to England on Saturday. However, as WRU TV's Liz Jones discovers, he is concerned about the threat Japan pose tomorrow.
Wales defence coach Shaun Edwards is looking for physical and mental toughness from the 47-man World Cup training squad which was revealed yesterday and he added he is looking forward to seeing which players are prepared to dig the deepest.
Wales Under 18 captain Calum Haggett has received a conditional offer to read Biomedical Science at St Anne's College, Oxford. WRU chairman Gareth Davies went to meet Calum and Coleg y Cymoedd Principal Judith Evans to wish him luck in his exams and pass on some of his personal experience.
Wales prop Nicky Smith had some good news to celebrate in the mountains of Switzerland this week as the Ospreys announced he has secured his long-term future at the Welsh region by singing a four year contract.
Cardiff Blues U18 Girls will go into Sunday's Gemau Cymru with an extra spring in their step after Welsh internationals Elinor Snowsill and Philippa Tuttiett offered some last minute tips at a training session earlier this week.
Wales U20 bounce back in the World Rugby Championships in this week's Principality Welsh Rugby Union Podcast. We hear from forwards coach Geraint Lewis and captain Ollie Griffiths, plus new WRU head of physical performance Paul Stridgeon. We talk new facilities in Usk and hear the plans of new Cardiff Blues head coach Danny Wilson.