An "angry" Carlos Sainz admitted his frustration after having had to retire yet again due to an engine problem in the Brazilian Grand Prix.
The Toro Rosso driver had to start the race from the pitlane after his car shut down as he tried to make his way to the grid.
His race then lasted just a couple of corners before he suffered an engine failure.
It was Sainz's seventh retirement of the season, and the Spaniard admitted the situation was far from ideal.
"It's the seventh time in the whole season. It means 50 per cent of the races that I have not finished. That is not what you want in a rookie year, and it's not what you are here for, you are here to get experience and to learn," said Sainz.
"So it's clearly not a good balance of retirements this season. But what can you do?"
Sainz, however, says he will move on as always and focus on the next race right away.
The Spaniard also admitted that, at the end of the day, he will be happy with his season despite the missed opportunities.
"You are obviously sad for one day. On Sundays I am very pissed off and angry with the situation because I think we had a great opportunity to score points again today.
"It just didn't happen and today I'm sad, angry with the situation but tomorrow I will be completely fine and looking forward to Abu Dhabi.
"When you have a rookie season with so many failures but you are still managing to create an impression on the F1 paddock it doesn't make me very sad at all.
"I will go out of this year thinking of what could have been without so many retirements but I'm happy with the overall performance."