The Premier League’s Profit and Sustainability Rules – or PSR – remain a major source of frustration for Chelsea. But new developments give them some hope of finding another way to bypass them. Under PSR, Chelsea are allowed to lose £105m over a rolling three-year period as long as the bulk of those losses are underwritten by Todd Boehly, Behdad Eghbali and the rest of the ownership. From next season, it is all but confirmed that the Premier League will move to a model similar to UEFA’s FFP system that will cap spending on wages, transfers and agent fees at 85 per cent of revenue. For context,…