For weeks on Raw , Michaels got revenge on both Vince McMahon and the Spirit Squad , until the May 22 episode of Raw , where the Spirit Squad were scripted to injure Michaels ' left knee . Throughout the weeks on Raw , Michaels got revenge on both Vince McMahon and the Spirit Squad , until the May 22 episode of Raw , where the Spirit Squad were scripted to injure Michaels ' left knee .