Hyundai's Juho Hanninen has admitted he was caught out by a slight dip on Friday in SS5 of Rally Italia Sardegna and this was what led to his demise.

Hanninen had made a great start to the event and was running second overall after SS4, just 2.9 second behind team-mate and then rally leader, Thierry Neuville. However, drama struck 5 kilometres from the end of the 27.30 kilometre Loelle test, when he lost control of his Hyundai i20 WRC and rolled it.

Hanninen and co-driver Tomi Tuominen were both uninjured in the incident, but the extent of damage meant they were unable to continue and the team was later forced to fully retire the car from the rally.

"The morning started well. We had a good starting position and a good tyre choice, so the opening stages were going quite well," said Hanninen, who was second quickest in SS2 and fastest in SS3.

"On SS5, we approached a right hand corner very fast and I lost the front, went wide and rolled many times. It took me by surprise but I realised after that there was a slight dip, almost like a rut, which caught me out. I should have noticed this from the recce but I have to learn from this for the future and be stronger."

"The good thing for us to take away from today is that we took a stage win and led the rally this morning," he added. "I've never led a WRC rally before so this is a positive.

"It's just a shame that the rally ended like it did."

Neuville meanwhile also had problems in SS5 and lost over 20 minutes due to a suspension issue. He finished day one in 27th as a result, while Hayden Paddon, who is making his debut with the team in Sardinia, concluded proceedings in 11th in the 'third' car.

"We had a number of encouraging performances this morning. Admittedly, we were able to benefit from running slightly later in the order and benefit from cleaner road, but still the drivers did a good job. We took our first ever 1-2 finishes in two stages which was certainly satisfying in our sixth event. We have been running three cars today so the team has done a great job, particularly facing a few issues in the afternoon," Hyundai team principal Michel Nandan summarised.

"Thierry had an issue in SS5 which lost him a lot of time but he fixed the problem and was able to make it to remote service where the team made sure he was in a condition to finish the day.

"Juho had a big crash in the same stage, in which he and Tomi were thankfully not injured. The car is regrettably too badly damaged to continue the rally so we have retired it.

"Hayden has done a solid job on his first full day of rallying with the team. It was a challenging start for him but, like our team, he is happy to embark on a steep learning curve. We will continue with two cars tomorrow and focus on adding more to our experiences here in Sardinia."