Ken Griffey Sr. is a three-time baseball all-star, a prostate cancer survivor, and a spokesperson for Bayer’s Men Who Speak Up program, which encourages men with advanced prostate cancer to know the symptoms of progressing disease and offers resources to help them feel more comfortable speaking up about it. Mr. Griffey, who is conducting a nationwide Men Who Speak Up tour with his son, Hall-of-Famer Ken Griffey Jr., will be a guest speaker at the 2016 Prostate Cancer Conference on September 10.