After Daniel Ricciardo's weekend started so well with the second fastest time in FP2, the McLaren driver admits he doesn't know where things went wrong in qualifying as he failed to make it out of Q2.
The Australian will start 13th on the grid, a disappointing result given teammate Lando Norris finished with the fourth fastest time - though he will start third given Valtteri Bottas' grid penalty. Ricciardo wasn't expecting to be fighting for a spot at the front on Saturday, but he doesn't have any answers as to what happened to his pace.
"What happened to me today is a bit of a mystery," Ricciardo told RacingNews365.com and other members of the media. "We were obviously quick yesterday, and I know it's only Friday practice. I didn't expect to be fighting for pole position today, but obviously we were pretty comfortable with everything.
"We put the car on track today and we are one second back pretty much. I think qualifying was also a product of this morning, we were just off the pace. But why? Not sure. It was definitely one of those days, a bit of a frustrating one, so we'll obviously try to understand why."
As for Sunday's race, Ricciardo will be hoping Safety Cars and the weather help him make up for the disappointment of Saturday.
"That's all we can do," Ricciardo added. "Quali is done. We have to certainly look to tomorrow.
"The one positive with being out in Q2 is you have a free tyre choice, so we'll obviously try and play around a bit there.
"It's always a bit confusing when from one day to the next [you are off the pace], not a whole lot changed with weather or temperature."