I would say purple spore puff ball, but maybe a giant puff now that I think about it. It's old I can say that. It did sprout recently. Could be a giant puff ball just in a very unusual shape. Do a cross cut and see if it has gills.
Looks like a Chestnut bolete (Gyroporus castaneus) that was exposed to direct sunlight...usually a much lighter (chestnut tan) color in shaded areas....just a guess however since it's tough to ID mushrooms from photos.