The 35-year-old midfielder will be out of contract at the end of the season and has accepted that he will not be offered fresh terms.
Damien Duff: "I'm up at the end of the season. The club haven't spoken to me and I haven't spoken to the club, but we don't need to speak - I'll be leaving Fulham.
"I've had a great time here, but that's football.
"I've had a few whispers from here and there, but I'm just trying to get this (knee) right first.
"I've looked at the Australia or America thing for a bit - it would be a different way of life, a different league.
"I think life's too short just to be stuck in the rat race, if that's the right phrase, over here so I'd maybe like to taste something new before I go back home."
PREMIER LEAGUE FIXTURES
Wednesday April 16
19:45 Everton v Crystal Palace
19:45 Manchester City v Sunderland
Saturday April 19
12:45 Tottenham v Fulham
15:00 Aston Villa v Southampton
15:00 Cardiff City v Stoke City
15:00 Newcastle Utd v Swansea City
15:00 West Ham Utd v Crystal Palace
17:30 Chelsea v Sunderland
Sunday April 20
12:00 Norwich City v Liverpool
14:05 Hull City v Arsenal
16:10 Everton v Man Utd
Monday April 21
20:00 Manchester City v West Brom