If Ashleigh Barty never returns to the tennis circuit – and there are no guarantees that she won't – a "what if" will surely pierce rows and debates about the women's game.
How much would she have won if she'd stayed on the tour to bewitch her adversaries with varying spins and trajectories? How would she have coped with the rising stars like 20-year-old Iga Swiatek or the grit of Maria Sakkari?
