Alun Wyn Jones admits the upcoming Test with Italy will be a big game for Wales after defensive shortcomings contributed to the defeat in Ireland last weekend.
Jones and co. conceded three tries, albeit with two of those scores coming with Lee Byrne in sin bin, but he says defence is an area that must be focused on in final match of a disappointing campaign for Warren Gatland and his players.
Official match statistics show Wales missed six tackles in the 80 minutes. That may not sound like much but the 91 per cent success rate that translates to, is unsatisfactory for the demanding second row.
"I am not sure what is going wrong in the defence," he said. "It is not the standard that we require, and it is very disappointing. It is not through want of trying - nobody goes out there on purpose to miss tackles."
He continued: "We have the systems in place, but they are not working because of missed tackles. We are missing one-on-one tackles at the moment. We had a lot of possession and territory, and that is what makes it all the more frustrating. We have under-performed in this championship. There is no doubt about that with the players we have got. Italy is a big game for us now - we have to pull our fingers out and lick our wounds."
And Shane Williams says there will be no let-up in Wales' search for a solution to shore up their leaking defence.
Ireland's three-try blast at Croke Park means Wales have conceded 10 touchdowns in this season's Six Nations Championship - eight more than when they were crowned 2008 Grand Slam champions.
"Teams are causing us problems, although we are working hard at finding a fix," said the Wales wing.
"Our defence was bad, we made mistakes in key areas and left a few holes which Ireland utilised. Our lack of concentration at times cost us.
"We did not get in the right areas often enough, and you often get punished at international level when you make a mistake."
Italian coach Nick Mallet also blasted his team's defensive performance as he watched France claim a 46-20 victory on Sunday.
He said: "It was the worst match we played for a year. We are pretty disappointed and our defence was very poor," he said. A lot of players played their worst games today and when you do that against France they will score a lot of tries. They were made to look a lot better by our missed tackles but some of our players were well off their best."
Wales Head Coach Rob Howley talks to WRU TV's Sebastian Barrett about the 36-man squad he has just named for the forthcoming Under Armour series, which includes two uncapped players, Ospreys duo Sam Davies and Rory Thornton.
Head coach Rowland Phillips is deligthed he can now call BT Sport Cardiff Arms Park home for his Wales Women's side, who launch their international season next month with games against Scotland and UK Armed Forces in the heart of the capital city.
Wales Sevens star Sam Cross has put his home town club of Brynmawr on the map after winning a silver medal at the Rio Olympics with Team GB. His club have now honoured him by naming their players bar after him, as WRU TV discovered at the official launch, recently.
One of the newest members of the Principality Premiership, Bargoed admit it's proving to be a steep learning curve at the highest level, but are determined to become a force to be reckoned with. WRU TV visited the club last weekend when they took on Llanelli.
Table-topping Aberavon travel to north Wales to tackle RGC 1404 as both teams defend unbeaten starts to the season in the Principality Premiership. WRU TV's Graeme Gillespie visited the Wizards to see how their preparations were going for the game of the weekend.
The Half a Game initiative is currently sweeping across Wales and proving a major success. The scheme aims to give every young player at least half a game every weekend. WRU TV recently visited a festival in Narberth where clubs have fully embraced the initiative.
Both Bargoed and Swansea were seeking their first win of the Principality Premiership season this afternoon. It proved a fruitful day for the hosts - not only did they win, but Bargoed claimed a try bonus point.
Cardiff managed to keep their unbeaten record at home intact, but only just as Bridgend made them work extremely hard before the Blue and Blacks secured a hard fought Principality Premiership win at the BT Sport Arms Park last night.
Former Wales back row Andy Powell gives a guided tour of The Wern, home of Merthyr RFC, who are determined to prove a lot of people wrong and make their mark in their first season in the Principality Premiership.
Wales Sevens head coach Gareth Williams looks back on the Rio Sevens success where he helped GB win silver. He believes the successful campaign is a huge boost to his Welsh squad as they prepare for another World Series, as WRU TV's Graeme Gillespie discovers