Sources tell WWE.com that Rey Mysterio will be at Friday Night SmackDown in Milwaukee next week to say goodbye. Friends of Mysterio say the former World Champion may actually announce his retirement. Those close to Rey say he is emotionally stressed following the months of struggle with former friends Vickie and Chavo Guerrero.

As reported several times before, he is expected to have knee surgery soon, which will keep him out of action for six months. The surgery was originally planned to occur back in July, but it was held off for his storyline with Chavo and Vickie Guerrero.