It's due to the forecast adverse weather
More sailings on Sunday could be disrupted or cancelled.
The Steam Packet Company says it's due to adverse forecast weather.
On Friday it was announced tomorrow's Ben-my-Chree 8.45am journey to Heysham and the Manannan's 2pm sailing to Liverpool and their respective returns at 2.15pm and 7.15pm may be affected.
Now the Manxman's 8pm journey on Sunday night from Douglas to Heysham and it's return at 2.15am on Monday morning is also at risk.
A decision on all these sailings will be made tomorrow (24 September).