The ugly Alexander Isak transfer saga continues to drag on, with a now public back and forth between the striker and Newcastle United, as he tries to force through a move to Liverpool. But there is a little-known Fifa rule on transfers which could play into Isak’s hands and provide him some leverage in the dispute.

Transfer news LIVE!Arsenal, Chelsea, Liverpool and Manchester United are all open to getting more business done as we enter the final stages of the summer transfer window. There has been news of the Gunners agreeing a deal for a forward,