Nicholson starts for Well; Clarkson in for Aberdeen
Motherwell v Aberdeen (15:00)
Motherwell make just the one change to the side that started in their seismic win at Ibrox a fortnight ago.
The switch comes in midfield as Davor Zdravkovski drops to the bench for Sam Nicholson to make his first start at Fir Park.
It's also just the one change for Aberdeen after their poor defeat at Dundee in midweek.
It comes in midfield as well, with Killian Phillips out for Leighton Clarkson.
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Recent Motherwell signing Moses Ebiye is on the benchImage caption: Recent Motherwell signing Moses Ebiye is on the bench
Saints one win from top six?
Kilmarnock v St Mirren (15:00)
Kheredine Idessane
BBC Scotland at Rugby Park
There's a big travelling support coming down from Paisley and they may well be celebrating back-to-back top six finishes come teatime.
The equation is simple. If St Mirren win and Hibs lose at home to Livingston, the Paisley Saints will be secure with three games to spare before the split. Quite an achievement if they can pull it off.
Can Raith regain lead in Championship?
Following Dundee United's slip at Dunfermline last night, Raith Rovers can take over at the summit of the Championship with a win at Queen's Park.
However, the Spiders are much improved, losing just once since Callum Davidson took over in early January.
It's super-tight in the fight to avoid the relegation play-off spot, with ninth-placed Inverness CT at home to Ayr United, who are just a point better off.
With leaders Rangers playing tomorrow, Celtic can go top of the Premiership this afternoon with a home win over St Johnstone.
There's a fourth versus fifth battle as St Mirren visit Kilmarnock, while Motherwell seek a third win on the bounce against struggling Aberdeen.
Ross County aim to reel the Dons in but have not beaten in-form Hearts since 2017, while bottom side Livingston have only won once away from home all season. That came at Easter Road, where they return against a Hibs side scrapping to make the top six.
Let's get on with the team news...
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Goalkeeper Joe Hart arriving at Celtic ParkImage caption: Goalkeeper Joe Hart arriving at Celtic Park
Live Reporting
Colin Moffat
All times stated are UK
Nicholson starts for Well; Clarkson in for Aberdeen
Motherwell v Aberdeen (15:00)
Motherwell make just the one change to the side that started in their seismic win at Ibrox a fortnight ago.
The switch comes in midfield as Davor Zdravkovski drops to the bench for Sam Nicholson to make his first start at Fir Park.
It's also just the one change for Aberdeen after their poor defeat at Dundee in midweek.
It comes in midfield as well, with Killian Phillips out for Leighton Clarkson.
Saints one win from top six?
Kilmarnock v St Mirren (15:00)
Kheredine Idessane
BBC Scotland at Rugby Park
There's a big travelling support coming down from Paisley and they may well be celebrating back-to-back top six finishes come teatime.
The equation is simple. If St Mirren win and Hibs lose at home to Livingston, the Paisley Saints will be secure with three games to spare before the split. Quite an achievement if they can pull it off.
Can Raith regain lead in Championship?
Following Dundee United's slip at Dunfermline last night, Raith Rovers can take over at the summit of the Championship with a win at Queen's Park.
However, the Spiders are much improved, losing just once since Callum Davidson took over in early January.
It's super-tight in the fight to avoid the relegation play-off spot, with ninth-placed Inverness CT at home to Ayr United, who are just a point better off.
LINE-UPS at Global Energy Stadium
Ross County v Hearts (15:00)
Ross County: Wickens, Efete, Baldwin, Ayina, Leak, Reid, Randall, Loturi, Dhanda, Murray, White.
Substitutes: Laidlaw, Borthwick-Jackson, Brown, Sims, Sheaf, Harmon, Henderson, Khela, Brophy.
Hearts: Clark, Atkinson, Sibbick, Kingsley, Rowles, Cochrane, Denholm, Baningime, Forrest, Vargas, Shankland.
Substitutes: Gordon, Grant, Oda, Devlin, Tait, Fraser, Tagawa, McLuckie, Lembikisa.
LINE-UPS at Rugby Park
Kilmarnock v St Mirren (15:00)
Kilmarnock: Dennis, Wright, Deas, Findlay, Armstrong, Watson, Polworth, Donnelly, Kennedy, Watkins, Vassell.
Substitutes: O'Hara, Ndaba, McKenzie, Balagizi, Murray, Cameron, Stewart, Mackay-Steven, Van Veen.
St Mirren: Hemming, Fraser, Gogic, Dunne, Flynn, O'Hara, Boyd-Munce, Tanser, Kiltie, Mandron, McMenamin.
Substitutes: Urminsky, Taylor, Brown, Kwon, Baccus, Jamieson, Scott, Olusanya, Ayunga.
LINE-UPS at Easter Road
Hibernian v Livingston (15:00)
Hibernian: Marshall, Cadden, Fish, Bushiri, Obita, Triantis, Newell, Marcondes, Youan, Maolida, Le Fondre.
Substitutes: Wollacott, Hanlon, Levitt, Stevenson, Tavares, Mayenda, Moriah-Welsh, J MacIntyre, Whittaker.
Livingston: George, Brandon, Obileye, Sean Kelly, Montano, Carson, Stephen Kelly, Holt, Bradley, Nouble, Yengi.
Substitutes: McGovern, Hamilton, Donnellan, Devlin, Anderson, Sangare, Guthrie, Culbert, Sharp.
LINE-UPS at Celtic Park
Celtic v St Johnstone (15:00)
Celtic: Hart, Johnston, Carter-Vickers, Welsh, Taylor, Iwata, O'Riley, Bernardo, Kuhn, Kyogo, Maeda.
Substitutes: Bain, Lagerbielke, Idah, Holm, Oh, Vata, Kelly, Forrest, Ralston.
St Johnstone: Mitov, M Smith, McGowan, Gordon, Considine, Robinson, Sprangler, Keltjens, Carey, Sidibeh, Phillips.
Substitutes: Richards, Gallacher, May, Clark, Kucheriavyi, Kimpioka, Franczak, C Smith.
LINE-UPS at Fir Park
Motherwell v Aberdeen (15:00)
Motherwell: Kelly, O'Donnell, Casey, Mugabi, Blaney, McGinn, Miller, Spittal, Nicholson, Bair, Vale.
Substitutes: Oxborough, Gent, Devine, Halliday, Ebiye, Zdravkovski, Ferrie, Wells, Shaw.
Aberdeen: Roos, Devlin, Gartenmann, MacDonald, MacKenzie, Shinnie, Barron, Clarkson, McGrath, Hoilett, Miovski.
Substitutes: Doohan, Jensen, Duk, McGarry, Phillips, Sokler, Polvara, Duncan, Milne.
Celtic aim for top spot
With leaders Rangers playing tomorrow, Celtic can go top of the Premiership this afternoon with a home win over St Johnstone.
There's a fourth versus fifth battle as St Mirren visit Kilmarnock, while Motherwell seek a third win on the bounce against struggling Aberdeen.
Ross County aim to reel the Dons in but have not beaten in-form Hearts since 2017, while bottom side Livingston have only won once away from home all season. That came at Easter Road, where they return against a Hibs side scrapping to make the top six.
Let's get on with the team news...