Fernando Alonso says McLaren made a 'wise decision' to retire him from the Italian Grand Prix after suffering from an electrical control board issue.
Alonso was catching up with McLaren team-mate Jenson Button during the closing stages of the race but the problem ultimately side lined him, albeit with the pair scrapping over a lowly 14th place.
"I got a good start today, then a couple of cars made contact at the first corner, which slowed me down," he said.
"Then, at the second chicane, I came close to Jenson and eventually lost all the advantage I’d gained.
"Jenson and I were on two different tyre strategies, to try to cover all possible opportunities. I was on the Prime, which was one second slower than the Option, so I had a slower first stint, but then I was a bit quicker in the second.
"In the final laps, I felt a loss of power and was told to retire the car, so as not to cause further damage. We were outside the points anyway, so it was a wise decision."
Button rose to ninth on the first lap but was helpless to defend as he slipped down to 14th.
"The whole first lap was good – there were a lot of incidents, and I think I got up into ninth," he said.
"Then, unfortunately, I just waited for the other cars to come by. It was a bit difficult out there, because the other drivers were overtaking me in places that I didn’t previously think were possible, so I had to look in my mirrors on the entry to every corner."