Brundle's take:
https://www.skysports.com/f1/news/1...-what-a-title-showdown-well-have-in-abu-dhabi
"... Max slowed and initially gave space in the curvy run down to the T27 hairpin. Lewis hadn't yet been informed but he must have been expecting something as his story of 'I didn't know what was happening so I didn't pass him' doesn't add up because if Max had technical issues and was dropping out of the race, Lewis would have normally just sailed past. He instinctively smelt tactics and danger.
I believe Max initially made a genuine effort to let Lewis through but when he realised that they were both planning to be second over the impending DRS detection line to gain advantage down the pit straight, and with Lewis now on his rear bumper, he angrily hit the brakes at 69 bar momentarily generating 2.4G deceleration, nearly half that normally generated into a heavy braking zone for a high speed approach to a hairpin, and then pinned the throttle. ..."