Lewis Hamilton has indicated that he still has doubts over whether to continue in Formula One next year amid ongoing uncertainty about the role of Mercedes team principal Toto Wolff beyond the end of this season.
Hamilton is on the verge of securing a record-equalling seventh world title, but has yet to renew his contract with the dominant Mercedes F1 team.
It had been assumed a new deal would be a formality, with Hamilton previously saying he intends to stay at the team for multiple years, but after winning Sunday's Emilia Romagna Grand Prix he said there was "no guarantee" he would remain in F1.