If you are an owner, register for MyHyundai.com and you will have access to it. If you are not an owner, I don't know where you could get it.
2017 covered all the Elantra models to add to the confusion of what you have, are they printing separate ones now? We purchased our 2017 in June of 2016, did have to wait a bit. Should have a hard copy for now.
Darn things have way too much repeated safety information in them, can't even find what you are looking for. But I gather they have to do this in our sue happy society.
I have a PDF version stored in iBooks on my iPad, and confirmed it does not include the Sport. As a check, I looked at "Tires and Wheels" on page 8-5, and they do not give specifications for any wheel size above 17".I don't remember seeing the Sport included in the online 17 owner's manual.