Minor moves: Tigers return rule 5 pick, Kameron Loe opt out coming, Astros still thinking on Josh Fields

While spring training may be winding down and rosters are being filled out, there will be plenty for Major League GMs to consider going forward. Between now and the flurry we will likely see come July, general managers must evaluate the Major League and minor league systems, fill holes, and plan for the future.

And with that, we bring you today's minor moves and notes:

• The Detroit Tigers did not want to carry Jeff Kobernus on their 25-man roster, so they returned him to the Washington Nationals says Amanda Comak of the Washington Times. The Tigers received Kobernus in a trade with the Boston Red Sox who were the ones who actually drafted the 24-year old infielder in the Rule 5 draft. The Nationals did not protect Kobernus, so they lost him, but fortunately for Washington, they're getting him back. Kobernus hit .282/.325/.333 at the Double-A level last season.

Jesus Montero hit in the head

Jesus Montero had to leave the game today after being struck in the head by a bat.
• With Jesus Montero's injury, the Seattle Mariners will have a difficult decision on their hands. Even if Montero's injury is not serious, they will likely need someone to fill in while he recovers. That fill in could very well be the roster spot Kameron Loe would need to stay on the team. However, as Geoff Baker of the Seattle Times points out, Loe can opt out and become a free agent on Monday. That give the Mariners very little time to decide the extent of Montero's injury and whether they want to keep Loe around or if they need the roster space.
• The Astros may return Josh Fields to the Boston Red Sox. Brian McTaggart of MLB.com says the Houston Astros are still deciding whether Fields will make the team - a stipulation for keeping a Rule 5 draft pick. The Astros selected Fields number one overall in last winter's Rule 5 draft. He has a good shot to make the bullpen, but Houston must be willing to keep him on the 25-man roster all season.

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