I played 'Soccer' my entire youth and to this very day I still don't know why we call it soccer. Also played American football- love the game, but have no idea why it's called football. If I had my way I'd switch their names.
'soccer' is an Americanism, and most countries around the world refer to the sport as 'football' or some variant thereof. Please accept 'he loves football' and 'he adores football' as valid translations as well. Thanks!