Philip Rivers says he's done with NFL, heading 'back to the sideline'

(Photo credit: Robert Goddin-Imagn Images)

Philip Rivers confirmed that his NFL career will be over once the Indianapolis Colts' season ends this weekend.

The 44-year-old came out of retirement a month ago after the Colts lost starting quarterback Daniel Jones to a season-ending injury. He made three starts -- all losses -- and said he is returning to coaching high school football in Alabama.

'I'm bac