You can't compartmentalize your life. Right is right and wrong is wrong. You can just say "this is sports" and get a pass for giving financial support to evil.
Since we live in a fallen, corrupt, sin-filled world, everything we give money to through buying or contributing or supporting in any manner is giving support "to evil", if you want to describe it that way. Even any church we attend is filled with sinners. After all there are only two types of people living on this earth - sinners who are not saved and sinners who are saved by God's sovereign grace.
But we are all as an unclean thing, and all our righteousnesses are as filthy rags; and we all do fade as a leaf; and our iniquities, like the wind, have taken us away. - Isaiah 64:6
Romans 3:9-18 What then? are we better than they? No, in no wise: for we have before proved both Jews and Gentiles, that they are all under sin; as it is written,
There is none righteous, no, not one:
There is none that understandeth,
There is none that seeketh after God.
They are all gone out of the way, they are together become unprofitable;
There is none that doeth good, no, not one.
Their throat is an open sepulchre;
With their tongues they have used deceit;
The poison of asps is under their lips:
Whose mouth is full of cursing and bitterness:
Their feet are swift to shed blood:
Destruction and misery are in their ways:
And the way of peace have they not known:
There is no fear of God before their eyes.
