Orioles (44-46) @ RedSox (55-39), 7:05pm
  BAL: Brian Burres (27, LHP, 6-5, 5.07)
  BOS: Clay Buchholz (23, RHP, 2-3, 5.53)

Twins (51-41) @ Tigers (46-45), 7:05pm
  MIN: Glen Perkins (25, LHP, 5-2, 4.27)
  DET: Armando Galarraga (26, RHP, 7-2, 3.27)

Rays (55-36) @ Indians (38-53), 7:05pm
  TBR: James Shields (26, RHP, 7-5, 3.64)
  CLE: Cliff Lee (29, LHP, 11-2, 2.43)

Yankees (49-43) @ Blue Jays (45-47), 7:07pm
  NYY: Joba Chamberlain (22, RHP, 2-2, 2.45)
  TOR: Roy Halladay (31, RHP, 10-6, 2.88)

WhiteSox (53-38) @ Rangers (48-45), 8:05pm
  CHW: Gavin Floyd (25, RHP, 10-4, 3.22)
  TEX: Luis Mendoza (24, RHP, 1-3, 7.54)

Mariners (36-56) @ Royals (41-52), 8:10pm
  SEA: Felix Hernandez (22, RHP, 6-5, 2.83)
  KCR: Luke Hochevar (24, RHP, 5-7, 5.40)

Angels (55-37) @ Athletics (50-42), 10:05pm
  LAA: Jon Garland (28, RHP, 8-5, 3.76)
  OAK: Sean Gallagher (22, RHP, 3-4, 4.45)

Giants (39-53) @ Cubs (55-37), 2:20pm
  SFG: Matt Cain (23, RHP, 5-7, 4.30)
  CHC: Jason Marquis (29, RHP, 6-5, 4.78)

D'backs (46-46) @ Phillies (50-43), 7:05pm
  ARI: Doug Davis (32, LHP, 3-4, 3.74)
  PHI: Kyle Kendrick (23, RHP, 8-3, 4.39)

Cardinals (51-42) @ Pirates (43-48), 7:05pm
  STL: Kyle Lohse (29, RHP, 10-2, 3.61)
  PIT: Zach Duke (25, LHP, 4-5, 4.23)

Rockies (39-54) @ Mets (48-44), 7:10pm
  COL: Aaron Cook (29, RHP, 11-6, 3.66)
  NYM: Oliver Perez (26, LHP, 6-5, 4.62)

Astros (42-50) @ Nationals (35-58), 7:35pm
  HOU: Roy Oswalt (30, RHP, 7-8, 4.60)
  WSN: Tim Redding (30, RHP, 6-3, 4.06)

Reds (44-49) @ Brewers (51-41), 8:05pm
  CIN: Josh Fogg (31, RHP, 1-2, 8.39)
  MIL: Manny Parra (25, LHP, 8-2, 3.65)

Braves (43-49) @ Padres (36-56), 10:05pm
  ATL: Jo-Jo Reyes (23, LHP, 3-7, 4.40)
  SDP: Jake Peavy (27, RHP, 6-5, 2.67)

Marlins (48-44) @ Dodgers (45-47), 10:40pm
  FLA: Chris Volstad (21, RHP, 1-0, 0.00)
  LAD: Eric Stults (28, LHP, 2-1, 2.22)