If it's been in the fridge it should be okay. Cook it and eat it. I usually marinatemy backstrapfor 24 hours, to get the best taste of the marination. Sometimes I just do it in an hour but doesn't taste as good when I do it for 24 hour. I've been eating vension meat this whole week, backstrap, meat loaf, sausage, and I'm having venison BBQ steak tommorrow, mmmm good.