Dundee v St Mirren (Sat, 15:00)
Dundee's selection problems have eased ahead of their Premiership return. One unnamed player remains out after catching Covid-19 but five who were potential close contacts have been cleared to play.
Alex Jakubiak (hamstring) and Cammy Kerr (knee) look set to miss out.
St Mirren have a full bill of health for the trip to Tayside.
Dundee manager James McPake: "We need to be conscious of the fact that we are in against better opposition. That's no disrespect to the Championship. It's a step we feel we are ready for and we proved last season against Premiership opposition that we can compete.
St Mirren goalkeeper Jak Alnwick: "Top six is the minimum target. Last season we got pipped on the last day (before the split) but now, looking at the faces we have brought in, I don't see why we can't go that next little step."
Did you know? Dundee's last Premiership campaign in 2018-19 opened and closed with defeats by St Mirren.
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Ross County v St Johnstone (Sat, 15:00)
Austrian midfielder David Cancola will have to wait for his Ross County debut as the new signing from Slovan Liberec is in quarantine until Monday.
Striker Chris Kane is unlikely to start for St Johnstone having not had the same game time as his team-mates during pre-season.
Ross County manager Malky Mackay: "We have a very threadbare squad after losing 15 players and bringing in five. I'm under no illusions that people will see us as underdogs for the season - that does me fine."
St Johnstone goalkeeper Zander Clark: "If we win it would give us good confidence going into Thursday's European tie. We can use that to help us there."
Did you know? Ross County have won just one of their past 11 league meetings with St Johnstone, who are unbeaten in their most recent eight trips to County in the Premiership.
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Heart of Midlothian v Celtic (Sat, 20:00)
New midfield arrival Beni Baningime could start for Hearts having trained with the team on Thursday and Friday. John Souttar is also set to feature after missing the cup win over Inverness as a precaution.
Swedish defender Carl Starfelt is in the Celtic squad after completing his quarantine period. Fellow new signing Kyogo Furuhashi is expected to arrive this weekend but is unlikely to play.
Leigh Griffiths (calf) remains out but Nir Bitton is back from a European ban.
Hearts winger Gary Mackay-Steven: "A lot has been said about Celtic but it's still a massive team, a massive challenge and they have still great players. We won't underestimate them at all. They are as tough a game as you'll get to start with."
Celtic manager Ange Postecoglou: "I'm still on the same planet, I haven't come from outer space. You'd be surprised about how much I know about Hearts. They've got a strong Aussie connection - Ryan McGowan, Paddy Kisnorbo, I can go back that far so I know Hearts very well."
Did you know? Celtic have won their past six league meetings with Hearts, whose last victory in the fixture came almost exactly three years ago.
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Aberdeen v Dundee United (Sun, 15:00)
Aberdeen summer signing Jay Emmanuel-Thomas is set to be fit despite the striker being forced off in Thursday's Europa Confereence League qualifier against BK Hacken with a facial cut.
Youngster Dean Campbell sat out the trip to Gothenburg due to a training-ground knock and will be assessed.
Dundee United manager Tam Courts reported a clean bill of health for his first league match in charge.
Aberdeen manager Stephen Glass: "What I feel we have now is a group that is driven, motivated and wants to be here. I think you can see that in the performance level and dedication they have given."
Dundee Utd manager Tam Courts: "We want to play in a style that appeases the fans, excites the fans. We want to give young players opportunities. If we can harness all those things together and finish where we want to, then it will be a successful season."
Did you know? Only one league goal was scored in last season's league meetings of Aberdeen and Dundee United - Adrian Sporle netting the winner in March's most recent encounter.
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Motherwell v Hibernian (Sun, 16:30)
Motherwell will assess the fitness of new arrival Juhani Ojala, with the Finland defender having been in quarantine prior to his signing on Thursday.
Liam Grimshaw, Connor Shields and Mark O'Hara remain out injured.
Hibernian hope to have midfielder Scott Allan back after he missed the midweek European win over Santa Coloma with a slight injury. Joe Newell returns from suspension.
Motherwell midfielder Liam Donnelly: "The first league game was the last game I played last season so I am definitely looking forward to it. My knee injury was difficult, a couple of setbacks, and it was challenging more mentally than anything to keep yourself going."
Hibs midfielder Jake Doyle-Hayes: "It will be amazing to have fans back and hopefully we can hit the ground running and get the season off to a positive start."
Did you now? Motherwell have failed to win their opening match in each of the past four Premiership campaigns while Hibernian have won their opening game in all four of their top-flight seasons since being promoted in 2017.