John Henry appears to have left the door ajar for a Liverpool takeover that could smash the all-time record. The Fenway Sports Group president last sought investment in the club in 2022, getting investment bank Goldman Sachs and Morgan Stanley on board to explore possible options. But the search ended in September last year when FSG sold a minority stake to Dynast Equity in a deal worth between £82m and £164m. Henry bought Liverpool for £300m in 2010 and there has been no indication that he wants a return on his investment just yet. But the latest news from Boston could suggest that his stance…