It depends on the team. Most seem to be supporting Susan G. Komen, but some aren’t... For example, the Packers are supporting the American Cancer Society.
The St. Louis Archdiocese has said that it “does not endorse” the Komen Race for the Cure because:
1. Some Komen chapters (St. Louis not among them) give money to Planned Parenthood which, even if only dedicated for breast health issues, frees up PP money for abortion, contraception, etc.
2. Komen ignores the scientific evidence linking abortion to breast cancer.
3. Komen supports embryonic stem cell research.
The Church does endorse Komen