The San Francisco 49ers' worst fears were realized when an MRI revealed that Jimmy Garoppolo did indeed suffer a torn left ACL in the loss to the Kansas City Chiefs on Sunday and the quarterback's season is over after Week 3.

ESPN's Adam Schefter was first to report that the news was official.

MRI showed what 49ers feared: Jimmy Garoppolo tore his ACL and his season is over, per source.

— Adam Schefter (@AdamSchefter) September 24, 2018

More on former Patriots backup QB's injury here and Tom Brady's reaction here.