Finn Harps striker Garbhan Friel has left the club.
The Donegal News are reporting the Inishowen man made the decision after the 2-0 win over Cobh last Friday.
The former Cockhill Celtic striker has struggled to force his way into Horgan's starting eleven since joining the Ballybofey side at the start of the season.
Harps are due to play UCD at Belfield on Sunday evening in the First Division depending on how the students do in their European tie on Thursday.
If they beat Slovan Bratislava in the Europa League the game against Harps will be postponed.