#0 - Jan. 21, 2009, 9:57 p.m.
Blizzard Post
Please refer to the following thread for an update: http://forums.worldofwarcraft.com/thread.html?topicId=14578687862&postId=145773858998&sid=1#0

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We have temporarily disabled all Arena matches while we investigate current rating calculation discrepancies. Further updates will be provided once we have additional information to share.