A split has emerged between Formula 1 teams as talks over the future of the sport reach a critical stage.

Half the teams object to plans to postpone the finalisation of a budget cap for 2021 from June until October.

Alfa Romeo, McLaren, Racing Point, Renault and Williams believe it is a back-door attempt by big teams to water down cost restrictions.

But Mercedes and Ferrari reject the claim and say the proposed 2021 rules are “immature” and need more work.

Read the full story at BBC Sport.