San Francisco 49ers RB Isaac Guerendo suffers torn pectoral muscle injury

San Francisco 49ers running back Isaac Guerendo has suffered a torn pectoral muscle, confirmed by head coach Kyle Shanahan. The injury, incurred while lifting weights, has slowed Guerendo's development and led the team to sign veteran backs Jordan Mims and Jermar Jefferson for depth. Guerendo's brief career has seen him struggle with injuries, with a lack of touches last season and a series of previous setbacks. The 49ers hope to have Guerendo back by the end of training camp, but his injury record raises questions about his future with the team.

• 12:55 AMYahoo Sports — The Downstream Impact of Niners RB Isaac Guerendo’s Injury