http://www.nfl.com/news/story/0ap30...co-49ers-great-dwight-clark-dies-at-age-of-61 San Francisco 49ers legend Dwight Clark passed away Monday at the age of 61, his family confirmed. An All Pro and two-time Super Bowl champion, Clark was diagnosed with amyotrophic lateral sclerosis (ALS), or Lou Gehrig's disease, in March of 2017. "The San Francisco 49ers family has suffered a tremendous loss today with the passing of Dwight Clark," the team announced in a statement. "We extend our condolences and prayers to Dwight's wife, Kelly, his family, friends and fans, as we join together to mourn the death of one the most beloved figures in 49ers history. May he rest in peace.