Dundee welcome back full-back Gary Irvine from suspension as they look to extend their unbeaten run to 17 games.Trialist Craig Robertson from Lochee Juniors will continue in the midfield with Neil McCann in line to play his third and final game as a trialist.
Morton will be without suspended midfielder Michael Tidser.
Former Dundee player Darren Young is struggling with an injured calf sustained in midweek, while Kevin Cuthbert will continue in goal.
Dundee manager Barry Smith:"Despite our run, nothing has been achieved as yet in terms of staying up in this division.
"So we'll just keep things going until it's mathematically impossible to go down.
"Craig Robertson is in the squad again on merit and he handled the game against Raith Rovers in midweek well, so I have no issues with playing him again."
Assistant manager Mark McNally:"We're looking at it as being a visit to the team at the top of the league.
"That is the form Dundee are in and that is where they would be if they hadn't been penalised 25 points.
"Both the games between us this season have been tight and we're due a wee break, so we're hoping we get it in this game."
Source: BBC Sport
Source: BBC Sport