Below are starting lineups that have been made public by the clubs. A lineup is not official until it is handed to the umpire. Additional lineups will be added as they become available:

Baltimore Orioles:
1. LF: Nate McLouth
2. 3B: Manny Machado
3. DH: Nick Markakis
4. CF: Adam Jones
5. 1B: Chris Davis
6. C: Matt Wieters
7. SS: J.J. Hardy
8. RF: Chris Dickerson
9. 2B: Alexi Casilla
SP: Chris Tillman

Boston Red Sox:
1. CF: Jacoby Ellsbury
2. RF: Shane Victorino
3. 2B: Dustin Pedroia
4. 1B: Mike Napoli
5. 3B: Will Middlebrooks
6. DH: Daniel Nava
7. C: Jarrod Saltalamacchia
8. SS: Stephen Drew
9. LF: Jackie Bradley
SP: Alfredo Aceves

Chicago Cubs:
1. CF: David DeJesus
2. SS: Starlin Castro
3. 1B: Anthony Rizzo
4. LF: Alfonso Soriano
5. RF: Nate Schierholtz
6. C: Welington Castillo
7. 3B: Luis Valbuena
8. 2B: Brent Lillibridge
9. SP: Scott Feldman

Chicago White Sox:
1. CF: Alejandro De Aza
2. 2B: Jeff Keppinger
3. RF: Alex Rios
4. LF: Adam Dunn
5. 1B: Paul Konerko
6. SS: Alexei Ramirez
7. 3B: Conor Gillaspie
8. C: Tyler Flowers
9. SP: Dylan Axelrod

Cleveland Indians:
1. CF: Michael Bourn
2. SS: Asdrubal Cabrera
3. 2B: Jason Kipnis
4. 1B: Nick Swisher
5. LF: Michael Brantley
6. DH: Mark Reynolds
7. 3B: Lonnie Chisenhall
8. C: Yan Gomes
9. RF: Drew Stubbs
SP: Zach McAllister

Detroit Tigers:
1. CF: Austin Jackson
2. RF: Torii Hunter
3. 3B: Miguel Cabrera
4. 1B: Prince Fielder
5. DH: Victor Martinez
6. LF: Andy Dirks
7. SS: Jhonny Peralta
8. C: Alex Avila
9. 2B: Omar Infante
SP: Doug Fister

Los Angeles Angels:
1. 3B: Alberto Callaspo
2. LF: Mike Trout
3. 1B: Albert Pujols
4. RF: Josh Hamilton
5. DH: Mark Trumbo
6. 2B: Howard Kendrick
7. C: Chris Iannetta
8. CF: Peter Bourjos
9. SS: Andrew Romine
SP: Jason Vargas

Los Angeles Dodgers:
1. LF: Carl Crawford
2. 2B: Mark Ellis
3. CF: Matt Kemp
4. 1B: Adrian Gonzalez
5. RF: Andre Ethier
6. C: A.J. Ellis
7. 3B: Luis Cruz
8. SS: Justin Sellers
9. SP: Zack Greinke

New York Yankees:
1. CF: Brett Gardner
2. 2B: Robinson Cano
3. 3B: Kevin Youkilis
4. DH: Travis Hafner
5. LF: Vernon Wells
6. RF: Ichiro Suzuki
7. SS: Eduardo Nunez
8. 1B: Lyle Overbay
9. C: Francisco Cervelli
SP: Phil Hughes

Oakland Athletics:
1. CF: Coco Crisp
2. RF: Chris Young
3. SS: Jed Lowrie
4. LF: Yoenis Cespedes
5. 1B: Brandon Moss
6. C: Derek Norris
7. 3B: Josh Donaldson
8. DH: Seth Smith
9. 2B: Andy Parrino
SP: A.J. Griffin

San Diego Padres:
1. SS: Everth Cabrera
2. RF: Will Venable
3. LF: Carlos Quentin
4. 1B: Yonder Alonso
5. 2B: Jedd Gyorko
6. C: Nick Hundley
7. CF: Cameron Maybin
8. 3B: Cody Ransom
9. SP: Jason Marquis

San Francisco Giants:
1. CF: Angel Pagan
2. SS: Brandon Crawford
3. 3B: Pablo Sandoval
4. C: Buster Posey
5. RF: Hunter Pence
6. 1B: Brandon Belt
7. LF: Gregor Blanco
8. 2B: Nick Noonan
9. SP: Ryan Vogelsong

Seattle Mariners:
1. CF: Franklin Gutierrez
2. 3B: Kyle Seager
3. DH: Kendry Morales
4. RF: Mike Morse
5. LF: Raul Ibanez
6. 1B: Justin Smoak
7. C: Jesus Montero
8. 2B: Robert Andino
9. SS: Brendan Ryan
SP: Felix Hernandez

Texas Rangers:
1. 2B: Ian Kinsler
2. SS: Elvis Andrus
3. DH: Lance Berkman
4. 3B: Adrian Beltre
5. LF: David Murphy
6. RF: Nelson Cruz
7. C: A.J. Pierzynski
8. 1B: Mitch Moreland
9. CF: Leonys Martin
SP: Justin Grimm

Toronto Blue Jays:
1. SS: Jose Reyes
2. LF: Melky Cabrera
3. DH: Jose Bautista
4. 1B: Edwin Encarnacion
5. C: J.P. Arencibia
6. RF: Rajai Davis
7. CF: Colby Rasmus
8. 3B: Mark DeRosa
9. 2B: Maicer Izturis
SP: Josh Johnson

Washington Nationals:
1. CF: Denard Span
2. RF: Jayson Werth
3. LF: Bryce Harper
4. 3B: Ryan Zimmerman
5. 1B: Adam LaRoche
6. SS: Ian Desmond
7. 2B: Danny Espinosa
8. C: Wilson Ramos
9. SP: Dan Haren