Bye-bye, Boone: 49ers G will reportedly sign with Vikings

Boone will sign with the Vikings, ESPN reported, which will leave a hole on an offensive line that struggled in 2015. Boone will reconnect with former 49ers tight ends coach Tony Sparano, who is the Vikings offensive line coach after spending 2015 with the 49ers. Boone, who started 59 of 64 games since 2012, was a mainstay of a front five and the 49ers will need to address the position in free agency or the draft.