Blueberry bush just arrived and doesn't look too healthy...

I've just received a new blueberry plant. It's buddy blue variety which is a rabbiteye type that I ordered specifically to compliment my pink lemonade. It's just arrived and to my fairly inexperienced eye it looks a bit diseased?? A lot of the leaves have reddish coloured blotches on it as pictured. Does anyone else have this or similar varieties who can advise what the issue (if any) might be? The main thing is I don't want it anywhere near my other blueberry plants if it might infect them! Thanks