NBA's Draymond Green -- 'It Was Only 4 Grapes' ... Explains Seahawks Food Fight

Golden State Warriors star Draymond Green is speaking out about the food fight in Seattle -- saying he only threw 4 GRAPES at Seahawks fans this weekend ... and it had nothing to do with the score.

TMZ Sports broke the story ... Green, along with several members of Stephen Curry's family (dressed in Panthers gear), got into it with a bunch of Seahawks fans at the stadium on Saturday -- with Draymond ultimately grabbing food and firing at the Hawks gang.

But Green says the whole thing has been "blown out of proportion" -- explaining, "It was 4 GRAPES!!!! And btw I'm not a Panthers fan idc that they lost!!!"

Hey man, let's not pretend grapes can't be dangerous ...