Two top candidates for 2007 Rookie of the Year, SS Troy Tulowitzki of Colorado and 3B Kevin Kouzmanoff of San Diego, have done nothing since the end of the season to make their respective managers question the confidence being placed in them as potential and likely big league starters in April.
Tulowitzki, likely to top SS Clint Barmes in spring competition, hit .329 in the recently concluded Arizona Fall League. Kouzmanoff, who already has been promised the 3B job for the Padres, hit .382.
San Francisco 2B prospect Kevin Frandsen, however, has not fared as well. Though Frandsen batted .387, the Giants re-signed 35-year-old veteran 2B Ray Durham, leaving Frandsen's playing opportunities limited.
Doctor X -- the 'Baseball Medic' -- is an anonymous U.S. government trauma specialist with a Duke University sports medicine background and more than 20 years experience in emergency medicine. From time to time he considers MLB rumors, events and news reports as they pertain to baseball players' injuries, illnesses and various other disabilities, both on the field and off.
MLB Rumors editor Greg Fieg is a former sports news editor and award-winning writer whose bylines have appeared on the wires of the Associated Press and in numerous publications, including San Antonio Express-News, San Antonio Light, Houston Chronicle and Philadelphia Bulletin. He formerly was posted in various positions on the U.S.-Mexican border with Freedom Newspapers, and was a regular, independent contributor to United Press International.