Jonah Keri of Grantland lists out the National League non-roster invitees who could have the greatest impact. In addition to a series of highly-touted prospects with a chance to break out this year, Keri says to keep an eye on Roger Bernadina (Reds), Mark Reynolds (Brewers), Bobby Abreu (Phillies), and Jamey Carroll (Nationals). Here's more from the National League: Jaime Garcia of the Cardinals is set to receive a second opinion on his ailing left shoulder after undergoing an MRI on Monday, reports Jenifer Langosch of MLB.com. Though declining further comment, GM John Mozeliak said that the preliminary review by...

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