The next three weeks could be very busy for Newcastle United. While the Magpies have up until August 30th to complete their summer transfer business, June 30th is also a deadline that they might have an eye on. That is when clubs must submit their next set of accounts to the Premier League, as they aim to satisfy their profit and sustainability rules. It has been reported that six Premier League clubs are currently under pressure to sell a player or two before that June 30th deadline, one of which is Newcastle United. That is incredibly frustrating, and sums up how the current PSR restrictions…