Mariners (12-19) @ Orioles (9-23), 7:05pm
  SEA: Cliff Lee (31, LHP, 0-1, 2.40)
  BAL: David Hernandez (25, RHP, 0-4, 5.74)

Yankees (21-10) @ Tigers (18-14), 7:05pm
  NYY: Javier Vazquez (34, RHP, 1-3, 9.78)
  DET: Rick Porcello (21, RHP, 2-3, 7.50)

Blue Jays (19-15) @ RedSox (17-16), 7:10pm
  TOR: Dana Eveland (26, LHP, 3-1, 3.82)
  BOS: Daisuke Matsuzaka (29, RHP, 1-1, 9.90)

Athletics (17-15) @ Rangers (18-14), 8:05pm
  OAK: Trevor Cahill (22, RHP, 1-1, 5.40)
  TEX: Colby Lewis (30, RHP, 3-1, 3.03)

Indians (11-18) @ Royals (11-21), 8:10pm
  CLE: Jake Westbrook (32, RHP, 0-2, 5.74)
  KCR: Brian Bannister (29, RHP, 1-2, 5.03)

WhiteSox (13-19) @ Twins (21-11), 8:10pm
  CHW: Freddy Garcia (35, RHP, 1-2, 5.28)
  MIN: Kevin Slowey (26, RHP, 4-2, 3.93)

Rays (22-10) @ Angels (15-19), 10:05pm
  TBR: Jeff Niemann (27, RHP, 2-0, 2.23)
  LAA: Scott Kazmir (26, LHP, 2-2, 7.11)

Reds (17-15) @ Pirates (14-18), 7:05pm
  CIN: Johnny Cueto (24, RHP, 1-1, 5.18)
  PIT: Charlie Morton (26, RHP, 1-5, 10.30)

Nationals (18-14) @ Mets (17-15), 7:10pm
  WSN: Scott Olsen (26, LHP, 2-1, 3.54)
  NYM: Jonathon Niese (23, LHP, 1-1, 3.60)

Marlins (15-17) @ Cubs (14-19), 8:05pm
  FLA: Ricky Nolasco (27, RHP, 2-2, 4.08)
  CHC: Randy Wells (27, RHP, 3-1, 4.86)

Braves (14-18) @ Brewers (15-17), 8:10pm
  ATL: Tim Hudson (34, RHP, 2-1, 2.82)
  MIL: David Bush (30, RHP, 1-2, 4.19)

Astros (10-21) @ Cardinals (20-12), 8:15pm
  HOU: Brett Myers (29, RHP, 1-2, 3.60)
  STL: Brad Penny (32, RHP, 3-2, 1.99)

Phillies (20-12) @ Rockies (15-17), 8:40pm
  PHI: Roy Halladay (33, RHP, 6-1, 1.45)
  COL: Aaron Cook (31, RHP, 1-3, 6.03)

Dodgers (15-17) @ D'backs (14-19), 9:40pm
  LAD: John Ely (24, RHP, 0-1, 4.26)
  ARI: Dan Haren (29, RHP, 4-1, 4.04)

Padres (19-12) @ Giants (18-12), 10:15pm
  SDP: Wade LeBlanc (25, LHP, 2-0, 1.16)
  SFG: Barry Zito (32, LHP, 5-0, 1.49)