Monza win was biggest mental blow to Ferrari
They'd had a couple – Seb's psychological difficult time was when he made a personal mistake. When the team makes a mistake it's painful, but when you personally make a mistake as a driver, when it's in your control, that's a horrible feeling.
"So, he would have taken that to heart. Then we had that fight at Monza and that would've been a team blow for them surely."
With Mercedes having struggled at the previous Belgian GP, Hamilton admitted that missing out on the front row at Monza had been hard to cope with.
"We'd lost the race before.. We knew we were up against it coming into Monza," he said. "We were hopeful that we might be able to out perform. Probably with a perfect lap maybe I could have qualified second.
"Actually on my side I was frustrated... No, pissed off with myself basically. That is just how it is. I never hold back on it.
"I thought I've done all that practising, then you mess it up in qualifying. I did do a good lap, it was just I still lost half a tenth here or there and that would've been the difference between second or third.
"Then, Saturday night it was difficult, and I was thinking a lot about how aggressive I wanted to be on the Sunday. It is very difficult to gauge how aggressive you should be. You go too far, spin off, cause an accident and start from last. Or crash.
"Or don't do enough and you don't capitalise on the window that was there. That's always the unknown. You don't know what's going to happen until it's presented to you and that's the great thing about motor racing, particularly races."