Davide Giugliano has apologised for not the accidents caused when his Ducati was struck by a stone during Superpole 2 at Brno on Saturday.

The stone damaged the radiator of the on-form Italian's 1198, leading to a loss of oil that eventually brought down four riders - including Giugliano.

While the bikes of Giugliano and Jakub Smrz were repaired during the one-hour delay to clean the track, BMW Italia's Ayrton Badovini and Kawasaki's David Salom were unable to take part in the restarted session.

"First of all I want to say that I'm really sorry for what happened and for the fact that it affected other riders' Superpole performance," said Giugliano. "I heard something hit my bike, but I didn't immediately notice that I was losing oil. I hurt my left forearm in the crash but it's nothing serious I don't think.

"It was great to see Carlos' technicians come and help my guys to get the bike fixed in time - I therefore want to thank the entire team for giving me the chance to go back out in the last session."

Giugliano, fastest in both Friday sessions, went on to snatch fourth place and a front row start on his last qualifying lap.

"It was a hard and emotional day but we can be satisfied with the final result I think," said the Italian. "This is the first time I've been able to interpret this track so well. Now I will rest up to be in the best possible condition for tomorrow's races."

Team-mate and reigning champion Carlos Checa is feeling confident after qualifying second on the grid.

"We've been working well all weekend. We identified a good set-up at Aragon and, having continued the work here, I'd say we're at a good point now," he said.

"What happened to Davide was a real shame but in the end we were both able to take strong results, despite the threat of rain in that last Superpole session.

"I think this is already a significant result for the team, as our performances prove that we can be competitive at this track. Tomorrow we'll be fighting hard - I'm feeling confident that we can do well."