I have an authentic mike bibby jersey and its white but i have a stain on it and im bery cautious when it come

Question:to my authentics clothes and i have no clue what the stain is but its a light yellow mark what can i use or do to get it out??

Answers:
The best things that I use to get rid of stains is either a Tide Pen or a cleaner called Simple Green. They have removed stains I never thought would come out. Test it first in an inconspicuous area to make sure it won't ruin the shirt. Also, never dry it in a dryer if the stain doesn't come out. If you do, you've set it in.