Nationals (33-42) @ Orioles (22-52), 1:35pm
  WSN: Luis Atilano (25, RHP, 6-4, 4.52)
  BAL: Jeremy Guthrie (31, RHP, 3-9, 4.28)

Phillies (39-33) @ Blue Jays (40-35), 1:35pm
  PHI: Jamie Moyer (47, LHP, 8-6, 4.43)
  TOR: Brett Cecil (23, LHP, 7-4, 4.06)

D'backs (29-46) @ Rays (44-30), 1:40pm
  ARI: Rodrigo Lopez (34, RHP, 3-6, 4.59)
  TBR: Wade Davis (24, RHP, 5-8, 4.90)

Cubs (32-42) @ WhiteSox (39-34), 2:05pm
  CHC: Ryan Dempster (33, RHP, 5-6, 3.56)
  CHW: John Danks (25, LHP, 7-5, 3.23)

Cardinals (41-33) @ Royals (31-44), 2:10pm
  STL: Jaime Garcia (23, LHP, 7-3, 1.79)
  KCR: Bruce Chen (33, LHP, 3-2, 3.96)

Rockies (39-35) @ Angels (42-35), 3:35pm
  COL: Jhoulys Chacin (22, RHP, 4-6, 3.56)
  LAA: Ervin Santana (27, RHP, 7-5, 3.91)

Pirates (25-49) @ Athletics (36-40), 4:05pm
  PIT: Ross Ohlendorf (27, RHP, 0-6, 5.43)
  OAK: Gio Gonzalez (24, LHP, 6-5, 3.89)

Astros (29-46) @ Rangers (45-29), 8:05pm
  HOU: Roy Oswalt (32, RHP, 5-9, 3.08)
  TEX: Tommy Hunter (23, RHP, 3-0, 2.31)

Padres (44-30) @ Marlins (35-39), 1:10pm
  SDP: Mat Latos (22, RHP, 8-4, 2.93)
  FLA: Anibal Sanchez (26, RHP, 7-4, 3.30)

Twins (41-33) @ Mets (42-32), 1:10pm
  MIN: Scott Baker (28, RHP, 6-6, 4.61)
  NYM: Jonathon Niese (23, LHP, 4-2, 4.17)

Indians (26-47) @ Reds (42-33), 1:10pm
  CLE: Mitch Talbot (26, RHP, 7-6, 4.08)
  CIN: Bronson Arroyo (33, RHP, 7-3, 4.35)

Tigers (39-34) @ Braves (44-31), 1:35pm
  DET: Justin Verlander (27, RHP, 8-5, 3.94)
  ATL: Tommy Hanson (23, RHP, 7-4, 4.17)

Mariners (31-43) @ Brewers (33-41), 2:10pm
  SEA: Jason Vargas (27, LHP, 6-2, 2.66)
  MIL: Chris Narveson (28, LHP, 6-4, 5.76)

RedSox (45-31) @ Giants (40-33), 4:05pm
  BOS: Jon Lester (26, LHP, 8-3, 3.03)
  SFG: Tim Lincecum (26, RHP, 8-2, 2.86)

Yankees (46-28) @ Dodgers (40-34), 8:00pm
  NYY: Andy Pettitte (38, LHP, 9-2, 2.48)
  LAD: Clayton Kershaw (22, LHP, 7-4, 3.24)