Shamrock Rovers have confirmed that Richie Ryan and Mark Quigley have left the club.
Ryan will move to Ottawa Fury in the second tier of football in the US.
He joined the Hoops in August but with a clause in his contract that permitted such a move in the off-season.
Quigley’s contract has been cancelled by mutual agreement after an unsuccessful season in Tallaght.
Dundalk, Sligo Rovers and St Patrick's Athletic have been linked with their former striker.