Ruairi Daly 
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Celtic go into Saturday’s game on the back of two consecutive wins and clean sheets.
Deila will have Thursday night’s game in mind but the focus for now is on catching Aberdeen and Hearts stand in the way of that reality.
Hearts will be looking to bounce back from their 3-1 home defeat to Aberdeen last time out when they make the trip to Paradise.
Celtic currently sit second in the league table, five points of leaders Aberdeen and four clear of third-placed Hearts.
Celtic
Mulgrew remains unavailable for Deila after picking up a thigh injury several weeks ago.
Midfield pair Stuart Armstrong and Scott Allan will be late calls along with deadline day signing Jozo Simunovic and will be assessed early tomorrow morning.
Griffiths is likely to return to the starting line-up after getting a rest on Wednesday night following a slight problem with his calf.
Hearts
Morgaro Gomis has returned from compassionate leave against Kilmarnock and likely go straight into the starting line-up.
Jamie Walker will also return to the starting team having been on the bench on Wednesday at Rugby Park.
Juwon Oshaniwa is suspension-free and travels with the side to Glasgow.
Eric Knott 
