Newcastle United could see their PSR-busting strategy of player swap deals backfire as their £87m transfer bill continues to mount. The Magpies have spent heavily under the Saudi Public Investment Fund in recent windows, although the Premier League’s Profit and Sustainability Rules have hamstrung them somewhat. The club now appear to be scrambling to get within the three-year allowable loss limit of £105m ahead of PSR deadline day on 30th June, when the assessment window rolls over to the next three-year period. This has seen Newcastle, as well as a number of other clubs, attempt controversial…