YAS MARINA, Abu Dhabi -- Daniil Kvyat has called on Toro Rosso to get to the bottom of his back-to-back punctures in Abu Dhabi after they compromised most of the teams Friday running.Kvyat suffered a left rear puncture in FP1 and FP2. In the first instance he was able to pull the car over and stop, but the second occurred at the high-speed right-hander at Turn 16. Fortunately the Russian drivers car stopped clear of the wall and he was able to return to the pits, but he did not emerge again, while teammate Carlos Sainzs session was also ended prematurely as a precaution.An investigation is ongoing overnight to solve the issue and Kvyat says the only thing he can do on Saturday is go out and make up for lost track time and trust the team has found a solution.I think its going to take a long time, he said. We just need to understand ... It will be a deeper dig after what happened. Its happened twice on my car. I lost a lot of mileage. The other car lost mileage too so its not cool. Tonight, there will be a big push to understand the problem.Its cost us a full Friday. I didnt do anything today. Well do our best to be in the correct window tomorrow and just go out and hope the issue will be fixed. Theres nothing I can do from my side. Im fully in the hands of the team at this stage.This weekend is not the first instance of Toro Rossos cars having punctures, with Carlos Sainz suffering two in one practice session during the U.S. Grand Prix weekend.When asked if the repeated failures, and Toro Rossos inability to solve them, was a concern, he replied: There was some precedent it was happening a bit lately. I think weve just got to dig really deep and itll be solved Im pretty sure. The team knows about it. From my side, all I can do is go out and drive. Air Max 1 Sale Outlet . "Were just throwing s--- at the wall hoping something sticks," said Tortorella about the possible line combinations for Fridays game against Columbus. 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Wales star Jamie Roberts has delivered a damning verdict on his performance against opening autumn opponents Australia and says he fully respected head coach Rob Howleys decision to drop him.Roberts has been restored to the Wales midfield for Saturdays Principality Stadium appointment with Japan, when he will win an 85th cap and extend a 45-Test midfield partnership with fellow British and Irish Lion Jonathan Davies.And the 30-year-old Harlequins centre is determined to bounce back after paying a hefty and unfamiliar price for Wales 32-8, five-try Wallabies defeat earlier this month by losing his place when they took on -- and beat -- Argentina six days ago.I could think of a few four-letter expletives to describe how I played against Australia, Roberts said. The hardest thing was probably trying to find a reason why, but it was nothing more and nothing less than a bad day at the office.I pride myself on consistency of performance, especially defensively, but it was a disappointing day personally and for the side. I certainly didnt deserve to play last weekend.Having spoken to Rob after the Australia game, I fully respected his decision. Its the nature of what we do. Its a competitive squad here, and we know if we dont perform, you dont deserve to keep the jersey.So I did a bit of soul-searching and certainly had a few sleepless nights, but you learn from it and I am ready and raring to go again this weekend.I walked off the pitch against Australia with a big inkling that I was going to be dropped. I made mistakes -- mistakes I dont normally make -- and that was the hardest thing was trying to find the reason why.I have been playing well this season and came into the camp with confidence. I had a poor performance. I am not over-thinking it.The competition in the squad is strong, esppecially at centre, and if you dont play well you dont deserve to keep the jersey.ddddddddddddThat is what drives us all forward, and hopefully thats what will drive me forward this week with a point to prove. Thats what Test rugby is about, and we are all in a better place for it.Roberts was an unused replacement last weekend as Wales edged out the Pumas 24-20, but he has dismissed any notion of Japans Cardiff visit providing him with an opportunity for redemption.Its not a shot at redemption -- it would be selfish to say that -- its about Wales winning and playing my part in that, he added. You learn from it. It has given me a new perspective, given me a kick up the backside, which I hope, when I look back on this season, that I needed. That is the way I am treating it.Wales have beaten Japan eight times in nine Tests, and that domination should continue with something to spare on Saturday, building further momentum ahead of next weeks autumn finale against South Africa.And one of the highlights could be an appearance off the bench by 18-year-old uncapped Ospreys wing Keelan Giles, whose devastating finishing ability and blistering pace have already seen him being mentioned in the same breath as Wales record try-scorer Shane Williams.I cant remember a guy as evasive as Keelan since Shane Williams, said Roberts, continuing the theme. We have had a drill in training when were put up one on one with Keelan, and it has been quite embarrassing.He is a frightening prospect, and I hope he gets a chance to come on and show his worth and show his potential. He is a humble lad and he knows this is a big opportunity for him. He has the potential to cause carnage. ' ' '