McLaren boss Zak Brown has said Formula One should not assume Lewis Hamilton will stay in the sport after the hurt of missing a record eighth title in controversial circumstances.
Hamilton, 37, has stayed silent since the 2021 season ended in uproar in Abu Dhabi last month, and his Mercedes team have indicated he is waiting to see the governing FIA's response to what went on.
"I wouldn't be shocked if he stopped. So I don't think anyone should take for granted he's coming back," Brown said.
"My personal opinion is he's going to [return] but I don't think we should discount or not recognise his frustration, his anger.