Luke Price helped guide the Ospreys to a second successive win
The Ospreys Under 18 made it two wins from two with 16-10 victory away to Cardiff Blues on Wednesday night.
Following on from an opening win over last year's champions the Scarlets, it represents a perfect start for Shaun Connor's side.
"I'm disappointed with the performance but pleased with the win," said the Ospreys head coach.
"We have to be pleased with two victories from two away games but we know there is a lot to work on in the next week before we play the Dragons. We will be working on our accuracy and we'll be looking at our basic skills of catch, pass and tackle technique. They are the key things and core skills the boys will have to work on in order to become professional players in the future."
On the positives to be taken from the win, Connor added: "The result was good but it was a disappointing game overall. It turned into a war of attrition but luckily enough we came out on top".
Ospreys fly half Luke Price, said: "I think it went well, we dogged it out to the end. We had to defend a lot and I thought the boys stuck in very well.
"Obviously there are areas we know we have to work on in training and then we have to go out there and do the same again."
On home surface, the Blues had started well with an early penalty from James Whittingham putting them into a 3-0 lead.
However, no sooner had they moved into the lead than the Blues received a major setback. Wing Ellis Wyn Benham was given a red card for a tip-tackle on Price, the fly half getting up to level the scores from the resulting penalty.
A man down, the Blues were now up against it and a pair of further penalties from Price put the Ospreys into a 9-3 lead.
The numbers were then temporarily levelled up when Matthew Dodd was yellow carded for the Ospreys, the Blues taking advantage with a try from Owen Young - Whittingham adding the conversion to put his side into the lead for the first time.
Their advantage didn't last long though as straight from the restart, Ospreys and Wales U18 forward Jon Fox scored right under the posts. Price then converted with the Ospreys going into half time leading 16-10.
The second half continued in much the same way but when the Blues were penalised for holding on after 58 minutes, the Ospreys took what turned out to be the only opportunity of the second half for either side to have a kick at goal.
Unfortunately, Price put the long range kick wide before the Ospreys again found themselves down to 14 men, Rees Geely shown a yellow card this time around.
The last play of the game saw the Blues have a line out just feet from the try line but despite some constant pressure, the Ospreys held on to secure the win.
In the other game to take place, the Dragons and the Scarlets shared a 16-16 draw at Pandy Park. The match turned into a shootout between the two fly halves, Arwel Robson kicking three penalties for the Dragons with Dan Jones doing likewise for the Scarlets.
Jones also added a try which he himself converted but a try for the Dragons from wing Lloyd Lewis and the extra two from replacement Connor Goode meant the sides could not be separated.
Principality Stadium will host the UEFA Champions League Final in six weeks' time. WRU chairman Gareth Davies, Football Association of Wales chief executive Jonathan Ford and Ambassador Ian Rush joined young sports fans at the trophy arrival at the venue to celebrate the magnitude of the event on Saturday 3rd June (kick-off 19.45).
British and Irish Lions captain Sam Warburton is looking forward to bringing together players from Ireland, Scotland, England and Wales for the biggest challenge of their careers - a series against world champions, New Zealand.
For the fifth year running, Wales referee Nigel Owens will be in charge of proceedings at Judgement Day V at Principality Stadium. It promises to be 'extra special' for the Wales' favourite ref, as he will be making his 150th appearance in the league.
There will be no shortage of inside knowledge from Bowl Finalists Caerphilly and Amman United when they face each other on Sunday at National Finals Day. Caerphilly hooker Rhys Cleverly knows the Principality Stadium pitch better than most as a matchday groundsman, while Amman United can look to Wales' record try scorer Shane Williams for some helpful advice.
Two hundred and 40 teams competed in the inaugural Urdd WRU 7s held at Pencoed last week with Welsh internationals Steff Andrews and Jasmine Joyce impressed with the talent on display, as was Urdd chief executive, Sioned Hughes.
The countdown is on for Judgement Day V as tickets for the big day at Principality Stadium soar through the 50,000 mark. Players and coaches alike are bursting at the seams to play in the double header with Dragons coach Kingsley Jones claiming there is a 'real buzz' about the event.
WRU TV went behind the scenes when the four regions got together to test their skill set for the BBC's Scrum V Live rugby show, at the WRU National Centre of Excellene in the build up to Judgement Day V. Blues' Matthew Morgan was one of the stars of the show while the Dragons' Cory Hill proved a surprise package...the full set of results will be revealed on tv screens on matchday
Wales assistant coach Richie Pugh is confident his side can cause a few headaches in the Hong Kong Sevens this weekend. In a tough group, Wales kick off their campaign against New Zealand on Friday before playing Japan and Fiji, who are chasing their third consecutive Hong Kong title, on Saturday.
Bedwas had to overcome a stubborn Carmarthen Quins side before winning the Foster's Challenge Cup final in Bridgend with a 23-18 victory. Bedwas captain Nicky Griffiths pays tribute to his side who have claimed the club's first piece of silverware in the modern era.
Team coach Brett Davey is aiming to keep his unbeaten run in cup finals at Principality Stadium intact when his side take on Amman United in the WRU Bowl final, after he guided Caerphilly to a 20-14 win against Cilfynydd in the semi-finals.
Penallta are hoping to go one step further than last season when falling to Bedlinog in the WRU Plate Final. After a titanic struggle against Nant Conwy, they have given themselves a great chance, after a hard fought 18-13 semi-final victory.