49ers Reaction August 16, 2021 3:56 pm Shanahan address Williams and Kinlaw newest injury concerns 49ers head coach Kyle Shanahan addressed Trent Williams and Javon Kinlaw’s latest injury concerns at training camp Monday. 49ers videos 1:02 Smith reacts to being called toughest opponent Staley, Williams faced 2:01 Aldon Smith reflects on NFL career, lessons learned 2:51 Former 49er Aldon Smith shares message to youth on mental health 0:58 49ers Talk: 49ers sign Terrell Owen's son Terique as undrafted free agent 1:25 49ers Talk: Is ‘writing on the wall' for Samuel's future in San Francisco?