despite mentioning it on the back cover, the set doesn't seem to include the Soccer King short.
From AnimeBluRayUK's unboxing:
!
That's three pretty major errors on the cover: a) as Aku-chan mentioned, the 'Dream Soccer King' short isn't on this set b) no English audio is included or even exists (I suppose this is technically accurate, as 'languages' could refer to the existence of the subs, but is still very misleading), and c) there is no 5.1 track, only 2.0. That is very shoddy of Manga, as well as (intentional or not) false advertising. If these get sold at brick and mortar shops then I'm guessing people will feel cheated about that. Plus, there are typos on the back cover too.
The mention of 'Dream Soccer King' is interesting though, as it suggests that Manga was planning to include it at some point.