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Details here, says it may be done in next 24 hours:
http://www.nottinghampost.com/Nottingham-Forest-close-signing-Slovenia/story-28458637-detail/story.html
Does this make sense? Yes. Forest need a defender after an injury, and Adrian Marin and Rukavina can both fill in for Jaume Costa on the left--and have, in our last two matches. Jokic is on €1m/year salary so moving that off the books makes sense (his contract ends in 2017).