Added the following icons to the lightblue icon-set in sizes 32x32, 48x48 and 64x64.

I am not really happy with the ones for the downloaded matches and tables though.
Do you really need those?

Can´t you do somethin like:
-> User selects table from matchday x
-> check if DB contains this matchday
-> (a) if yes, show matchday from DB (maybe with a small symbol indicating data is from DB)
(b) if no, download matchday

Additionally you may want to check if machtday x is from today and if yes, force a download to make sure the most current data is shown in case it is still updated due to ongoing games.
And you can add a button to let the user manually force an update.

This way you don´t need the 2 extra tabs and save valuable screen space.
And I think for the users its also easier because they dont have to care about which tab to choose and where tha data comes from (online or offline) unless they want to...