Former Chicago Bears linebacker Mike Singletary had an intimate relationship with Hall of Fame running back Walter Payton when he was still alive. When asked on Twitter to share a memorable aspect of that friendship, he revealed a powerful bit of information.

After being diagnosed with a rare liver disease, Payton asked Singletary to read the Bible with him every day. Singletary said he did until the day he died.

Via Singletary's verified Twitter account:

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When Walter got sick he asked me to read the bible w/him every day. I did til the day he died. #85Bears https://t.co/lLH5OUXLNT

— Mike Singletary (@CoachMSing) February 5, 2016

Payton's diagnosis came in February of 1999, and he died on Nov. 1 of that same year. Those 10 months must have been tougher than anything they went through during their seven seasons as teammates (1981-1987).

The 1985 season was a big one for both Payton and Singletary, as well as the Bears. They brought the first and only Super Bowl victory to Chicago that season; Payton was the NFL's third leading rusher and Singletary won Defensive Player of the Year.