A recent ATP study shows how severely its tournament business model has been impacted by COVID-19. It accepts the considerable drop in the prize money redistributed to players but does not open the door to a revision of the model, requested in particular by John Isner before Miami.
John Isner admits that the decrease of prize money at the 2021 Miami Open is not a major issue, one month after his controversial thread on Twitter. But he maintains that 'the system' of the ATP lacks of transparency.