At Wrigley Field, Chicago.
Tonight at 8:05
LHP J.A. Happ (8-2, 2.74 ERA) vs. Chicago RHP Rich Harden (7-7, 4.41).
Tomorrow at 8:05 p.m.
RHP Pedro Martinez (season debut) vs. Chicago RHP Jeff Samardzija (1-1, 6.29).
Thursday at 2:20 p.m.
LHP Cliff Lee (9-9, 2.95) vs. Chicago RHP Ryan Dempster (6-5, 4.04).