Bill Withers- Ain't No Sunshine

On this 1972 performance of Ain't No Sunshine performed on "Old Grey Whistle Test", who played electric guitar? Obviously Bill Withers is playing acoustic but whose on lead? Obviously a jazz influenced player, playing Am7 and other alternative chords to the simple Am, Em and Dm chord progression played on the original studio version.
I found this on a search, " In his 1972 Old Grey Whistle Test performance of "Ain't No Sunshine," Bill Withers played acoustic guitar himself. He was accompanied by his touring band, which included a drummer, a bass player, and another guitarist, though the specific identity of that second guitarist in the 1972 studio session is not explicitly highlighted in the video footage."
I want to know who he is. Anybody here know?