Racing PositionsNats' Kieboom to get surgery, out for season2YNats put 10 on IL before opener, win on walk-off5YNats send projected 3B starter Kieboom to minors5YIgnoring 'Twitter World': Kieboom still at 3B5YNationals option Kieboom, activate Doolittle5YMLB players with something to prove in spring training6YCraig EdwardsNats' Kieboom leans on Notes app to prep for 3B6YNats activate Rendon, ship Kieboom to minors7YNats' Kieboom hits game-tying homer in debut7YEddie Matz
