Racing PositionsCubs claim C Rivera off waivers from Mets7YInfielder Adrianza retires after 12 MLB seasons1dRed Sox acquire Morán from Twins for Gasper1d'I guess this is the Cubs' version of going all-in': What to make of Chicago's confusing offseason2dJesse RogersMLB, umpires reach tentative deal for new CBA2dJesse RogersNew-look Astros admit talks with Bregman stalled2dPhillies, righty Ross finalize 1-year, $4M pact2dESPN News ServicesSources: Slugger Jimenez gets Rays minors deal3dJesse RogersMLB offseason grades: Red Sox sign Buehler, Rangers add Pederson in pre-holiday spree3dBradford Doolittle, David SchoenfieldMcCutchen returns to Pirates on one-year deal2dESPN News Services