Cleveland Indians
Manager: Terry Francona
Record last season: 85-77
Last postseason appearance: 2013
Key additions: OF Brandon Moss, RHP Shaun Marcum, RHP Anthony Swarzak
Key subtractions: RHP Justin Masterson, SS Asdrubal Cabrera, OF Nyjer Morgan
Why they'll contend: A talented rotation — even without the demoted Danny Salazar — and an offense that could be very good.
Why they won't: Cy Young Award winner Corey Kluber takes a step back. Everyday players Jason Kipnis, Lonnie Chisenhall and Yan Gomes don't take the next step.
Chicago White Sox
Manager: Robin Ventura
Record last season: 73-89
Last postseason appearance: 2008
Key additions: RHP Jeff Samardzija, RHP David Robertson, OF Melky Cabrera, 1B-DH Adam LaRoche
Key subtractions: 1B Paul Konerko, OF Alejandro De Aza
Why they'll contend: Big-time moves boost rotation and offense
Why they won't: Ace Chris Sale can't stay healthy, and back end of rotation is a little weak
Detroit Tigers
Manager: Brad Ausmus
Record last season: 90-72
Last postseason appearance: 2014
Key additions: OF Yoenis Cespedes, RHP Shane Greene, RHP Alfredo Simon
Key subtractions: RHP Max Scherzer, RHP Rick Porcello, OF Torii Hunter, LHP Phil Coke
Why they'll contend: They have one of the best 1-2 punches in the game with sluggers Miguel Cabrera and Victor Martinez.
Why they won't: They fail to absorb the losses of Scherzer and Porcello, and the bullpen woes return.
Kansas City Royals
Manager: Ned Yost
Record last season: 89-73
Last postseason appearance: 2014
Key additions: RHP Edinson Volquez, DH Kendrys Morales, OF Alex Rios, RHP Kris Medlen
Key subtractions: RHP James Shields, DH Billy Butler, OF Nori Aoki, RHP Aaron Crow
Why they'll contend: Pitching and defense, plus Eric Hosmer and Mike Moustakas can't produce any less than last year.
Why they won't: They won't be overlooked, and losing Shields is too big of a blow.
Minnesota Twins
Manager: Paul Molitor
Record last season: 70-92
Last postseason appearance: 2010
Key additions: Manager Paul Molitor, RHP Ervin Santana, OF Torii Hunter, RHP Tim Stauffer
Key subtractions: Manager Ron Gardenhire, RHP Anthony Swarzak, RHP Jared Burton.
Why they'll contend: One of the better offenses in the league, and improved starting pitching.
Why they won't: Major questions about the bullpen, and Santana's 80-game suspension for PED use is a major setback.