Sept 2 (Reuters) - The following are the top stories in the Financial Times. Reuters has not verified these stories and does not vouch for their accuracy.
Headlines
Sanjeev Gupta battles Rio Tinto over $50 mln payment
https://on.ft.com/2HEAvRq
Boris Johnson vows to purge rebels who vote against no-deal
Brexit
https://on.ft.com/32dpApQ
Sky in talks to invest in Liberty Global fibre network
https://on.ft.com/32q3AYZ
Overview
Australian mining firm Rio Tinto Plc RIO.L has opened an arbitration process in relation to the sale of Dunkerque aluminium smelter to Liberty House, owned by Indian Industrialist Sanjeev Gupta, alleging non-repayment of $50 million of working capital.
British Prime Minister Boris Johnson warned Conservative MPs that they will have their party whips withdrawn and be restricted from standing in the elections if they do not back him in a key Brexit vote on Tuesday.
British broadband and mobile operator Sky has opened talks with telecommunications company Liberty Global Plc LBTYA.O over a potential investment in Liberty's latest fibre network.