Assuming it's a standard FIFA size 5 football coming home,
it should hold a little under 5.792 litres (according to the ever trustworthy answers.com), which is more than twice what you need. I say a little under because the calculation is based on a 70cm external circumference of a sphere; a football isn't a true sphere and I guess their 'skins' are around 0.3cm thick.
( brb welcome to my reed organ repair blog, Fri 2 Jul 2021, 13:11, archived)

Might get that on the populol page so those on brb ignore 2.0 can witness the quality internet they are missing

( broadsword now that's fresh, Fri 2 Jul 2021, 16:03, archived)

You'd need a second person to like it though.
I don't see it happening, soz.
( brb welcome to my reed organ repair blog, Fri 2 Jul 2021, 19:08, archived)