Sox Manager Ozzie Guillen expressed some concern with the velocity of Bobby Jenks' pitches of late.  He's also given up a lot of hits over his last few outings and it could be a result of that lack of velocity.  Guillen decided to rest Jenks for a few days and he was unavailable for a save opportunity on Wedneday.  Scott Linebrink was given that chance but promptly blew the save by giving up a homerun to Grady Sizemore.  Jenks' owners should be a little worried and adding Linebrink would make for some good insurance should anything go wrong with Jenks between now and year's end.  This news is courtesy of the Chicago Tribune.