The Bears teamed up with Lifesource for a blood drive and bone marrow registration at Soldier Field. January is National Blood Donor Month. Traditionally, donations taper off in the winter months.
Nearly 300 fans participated and received a tour of a Soldier Field locker room.
They also got a chance to meet some members of the '85 championship team, including Shaun Gayle and Mike Richardson.
Lifesource says Saturday's blood drive was a way to thank donors for their efforts.
For more details, visit www.lifesource.org.