Fans in the bleachers will receive a "Pink Out" T-shirt, and fans seated elsewhere will be able to obtain a shirt in exchange for a donation, collected by wives of Cubs players and coaches.
The renovated bleachers in left and center field at Wrigley Field are scheduled to open for Monday's game.
Cubs players will wear pink batting-practice jerseys that later will be auctioned off.
Ginny Cooper, a 10-year cancer survivor, will serve as the Cubs' Honorary Bat Girl and deliver the game's lineup card after being selected based on her story about "Going to Bat Against Breast Cancer."
Jim Hoehn is a contributor to MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.