Morton manager Allan Moore will include one Scottish and one overseas trialist in his squad against Ross County.However, he will be without injured defender David MacGregor and midfielder Carlo Monti, while youngster Sean Fitzharris faces a late fitness test.
County are boosted by having Michael Gardyne back in the ranks.
However, their joy will be tempered by the news that forwards Andy Barrowman and Steven Craig remain on the sidelines due to injury.
Morton manager Allan Moore: "We have picked up more points at home than away from home but we have played better away from Cappielow.
"If we can turn in a good performance and get the crowd behind us I am sure it would help us get a win.
"If there is any weariness in their legs we have to be up for taking advantage."
Ross County manager Derek Adams: "Going to Greenock to face Morton is a long trek after 120 minutes in difficult conditions but we have a good record at Cappielow and one that I am keen to keep going by winning.
"The guys that played in midweek all came through it intact, which is good news, although there are a few carrying slight strains but nothing that will keep them out of this game."
Source: BBC Sport