A person with direct knowledge of the medical decision says Texas Rangers slugger Prince Fielder will have to quit playing baseball after his second neck surgery.
   That person told The Associated Press that Fielder isn't formally retiring, but that doctors won't give him medical clearance to play. That person spoke on condition of anonymity Tuesday because there was no official announcement from the Rangers or Fielder about his future.
   Fielder had a cervical fusion on July 29 to repair a herniation between two disks in his neck. That was done just above the area where the 32-year-old Fielder had a similar surgery in May 2014, just 26 months earlier.
   Fox Sports was the first to report that Fielder was done playing.