Duffus joins from Yeovil Town, having scored 21 goals during his two year spell at Huish Park. Standing at 6ft 2″ the 25 year old began his career at Everton spending five years at Goodison Park progressing through the ranks, and then going onto sign first-team forms.
A loan spell at Bury gave Duffus first-team football during the 2014/15 season before returning to Everton to compete in the development set-up.
Courtney made the switch to Oldham Athletic in July 2017 and would make a loan spell to Irish Premier League side Waterford midway through that 2017/18 campaign. He notched up 10 goals in 25 appearances for the Club, form that saw him return to Oldham for the following season, but he was unable to break through into the starting team.
Yeovil Town then came calling in January 2019. He would go on to ply his trade in The National League with the Somerset side and, at the same time, catch the eye of Neil Smith. Duffus signed for the Ravens on 15th January 2021 making the switch from The Glovers.