Lewis Hamilton was controversially denied victory in the Belgian Grand Prix after stewards handed the McLaren ace a retrospective 25-second drive-through penalty.
They claimed Hamilton had cut a chicane, so gaining an advantage in passing Kimi Raikkonen to take the lead at the end of lap 42 of the 44-lap race.
Although Hamilton promptly gave the place back, and then went on to legitimately pass Raikkonen immediately at the La Source hairpin, the stewards chose to penalise the 23-year-old.
That led to him being demoted from first to third, and seeing an eight-point lead cut to two in the drivers' championship.
Naturally, Hamilton is adamant he did nothing wrong, and he explained what transpired at the critical moment of the race, which could potentially prove a pivotal moment in the championship.
"It began to rain," said Hamilton.
"I caught Kimi and I got a good tow from him down the back straight and I was in a good position to dive down the inside at turn 18.
"He covered his spot, which was fair, but he braked very early, so I was able to outbrake him and go around the outside, which I did.
"I left him enough room. I didn't close the gap so much that he had to go on a kerb.
"Yet he accelerated, or picked up more pace going into the corner, and drove me as wide as he possibly could. I had no road left.
"There was a question I had to ask: if I stay where I am, I'm going to go over the Astroturf - there's some of it behind the last kerb - or go over it and hit him. Or I go left.
"That was the option I had to do, and I did it.
"But I knew I had to let him past, and also the team came over the radio and said 'you have to let him past' which I did.
"I was accelerating so that I didn't lose too much ground because I thought that would be unfair.
"Fortunately I got back in his slipstream, and again he moved to the inside and back to the outside.
"Again, I dodged him and went up the inside and at the apex to the corner he hit me at the back, and that nearly caused me to spin.
"Fortunately I kept hold of it and went on from there. That was a great fight and I don't think there was anything wrong there.
"The rules say you should let him back past which I did."
McLaren has registered its intent to appeal, however, FIA rules state that is not possible in relation to a drive-through penalty.
The matter could now revert to the FIA Court of Appeal who will determine whether there is a case to answer with regard to McLaren's protest.