San Francisco 49ers legend Dwight Clark was recently diagnosed with ALS, sending shockwaves through the franchise and fan base. It also recalled memories of three 49ers teammates from the mid-1960s who were all diagnosed with ALS following their football careers. In this special edition of The 49ers Insider Podcast, Matt Maiocco explores the mysterious story of those three men -- Matt Hazeltine, Gary Lewis and Bob Waters. (Episode 31)
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