Celtic v Motherwell
James McFadden faces a late fitness test before Motherwell's Scottish Premiership clash at Celtic Park.
The winger went off at half-time against Ross County last weekend with a tight hamstring.
Manager Stuart McCall also revealed he had one or two other unnamed injury doubts.
Dundee United v Kilmarnock
Dundee United will welcome back defender Gavin Gunning from his three-match suspension when they take on Kilmarnock on Saturday.
The defender was banned retrospectively for aiming a kick at Celtic's Virgil van Dijk in a 1-0 defeat in August but will be back for the clash with Killie at Tannadice.
Winger Gary Mackay-Steven could start after regaining full fitness from a groin injury recently.
Kilmarnock boss Allan Johnston has a list of injury concerns.
Forward Mark Stewart is out for six weeks after breaking his jaw in training, while Jeroen Tesselaar (head) and Kyle Jacobs (swollen toe) also miss out. On-loan Michael Gardyne, meanwhile, is not permitted to play against his parent club.
Barry Nicholson (knee) is also a doubt but Chris Johnstone returned to training this week after his shoulder injury. Celtic loanee Jackson Irvine is back in the squad after missing last week's 5-2 defeat to the Hoops.
Heart of Midlothian v St. Mirren
Hearts manager Gary Locke has a full squad to choose from for their clash with St Mirren.
Ryan Stevenson is pushing for more involvement after making his comeback from a knee ligament injury in the 71st minute of last weekend's goalless draw with Dundee United.
However, Locke could not give him game time for the Under-20s in midweek as he did not want to play the midfielder on an artificial surface.
Lee Mair should keep his place in the St Mirren side with Marc McAusland still sidelined.
Danny Grainger returns from suspension but David Barron missed out with an ankle knock.
Ross County v Aberdeen
Brian McLean has recovered from a head knock and is available for Ross County's home Scottish Premiership game against Aberdeen on Saturday.
The big defender came off against Motherwell at Fir Park last weekend with concussion but has trained this week.
On-loan Grasshoppers striker Orhan Mustafi remains out with a broken toe while Alex Cooper has a knock.
Forward Niall McGinn will have a fitness test ahead of the clash with manager Derek McInnes keen to have a look at the player before the trip to Dingwall.
Saturday’s match will probably come too soon for midfielder Barry Robson whilst Chris Clark and Willo Flood also remain sidelined.
St. Johnstone v Inverness Caledonian Thistle
St Johnstone boss Tommy Wright is hopeful of welcoming back Gary McDonald for Saturday's visit of Inverness - but the Perth boss has been told Steven Anderson might be ruled out for eight weeks.
The central defender dislocated his thumb in last weekend's 1-1 draw with Partick and was forced to undergo surgery to repair ligament damage to the digit.
McDonald, however, has trained again after shaking off the hamstring strain that kept him out of the Thistle clash, leaving leg-break victim David Robertson as the only other confirmed absentee for the match with Terry Butchers' Scottish Premiership table-toppers.
Inverness will be without James Vincent after scans revealed he had damaged his knee.
Aside from the midfielder, boss Terry Butcher has a fully fit squad to pick from.