It's not just about the Premiership today of course.

There are five matches in the Championship...

Image source, BBC Sport

Hibs fans are still coming to terms with the loss of John McGinn who sealed a move to Aston Villa during the week.

Any Hibees keen to keep an eye on their Scottish Cup hero today should know Villa have put the midfielder straight into their starting line-up to face Wigan Athletic.

Livingston: Kelly, Gallagher, Halkett, Saunders, Kaja, Pitman, Byrne, Robinson, Lawless, Kenny Miller, Lee Miller. Subs: Brown, Lamie, Lithgow, Jacobs, Cadden, Stewart, Hamilton.

Kilmarnock: MacDonald, O'Donnell, Broadfoot, Scott Boyd, Taylor, Burke, Power, Dicker, Jones, Ndjoli, Kris Boyd. Subs: Bachmann, Kiltie, Higgins, Waters, Wilson, Thomas, Brophy.

Image source, BBC Sport

Livingston play their first match of the season at the Tony Macaroni Arena, which has had a new pitch installed.

It's also Kenny Miller's first match at the ground as player-manager, with their previous 'home' games in this season's League Cup being played at Prestonfield while the new pitch was being laid.

After losing 3-1 at Celtic Park last week, it's a tough opponent for Livi today in the shape of Kilmarnock, who made a solid start to their league campaign with a 2-0 win over St Johnstone.

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John Barnes
BBC Scotland at Fir Park

It’s amazing what the fixture computer throws up when it comes to the Lanarkshire derby. In Motherwell’s last league fixture of last season they hosted Hamilton, and now their first home match of the new Premiership season has their county rivals visiting Fir Park again.

The sides met five times last season - there were two wins each in the league, while Motherwell won their Scottish Cup meeting. Both teams have still to get a point on the board after last week’s opening losses to the capital clubs, while the Steelmen are also looking for their first league goal of the campaign.

Accies won here last December but that has been their only victory in their last six league visits to Fir Park, so Motherwell will be seen as favourites for this encounter.

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Motherwell: Carson, Tait, McHugh, Aldred, Hartley, Cadden, Campbell, Main, Rose, Bigirimana, Sammon

Subs: Gillespie, Taylor-Sinclair, Frear, Rodgriguez Gorrin, Johnson, Maguire, Scott

Hamilton Academical: Woods, McGowan, McMann, Gordon, Bingham, Miller, Taiwo, Penny, Mackinnon, Want, Kelly

Subs: Tshiembe, Phillips, Imrie, Cunningham, Bloomfield, Boyd, Fulton

Dundee haven't beaten Aberdeen in their last 18 league matches going back to 2005, and both sides will both be trying to get their first Premiership win of the season today at Dens Park.

Dundee suffered a late defeat at the hands of St Mirren last Saturday before Aberdeen scored late to secure a draw at home to Rangers on Sunday.

Both sides have had a big turnover of players since last term - will any of the new boys make an impression today?

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Dundee: Hamilton, Ralph, Kusunga, Moussa, Ngwatala, Mendy, McGowan, Madianga, Meekings, Curran, Spence

Subs: Parish, Kerr, Caulker, Nabi, Wighton, Moore, Henvey

Aberdeen: Lewis, Ball, Devlin, Considine, Shinnie, Gleeson, Ferguson, McGinn, Mackay-Steven, Cosgrove, May

Subs: Cerny, Forrester, Wright, Ross, Campbell, Anderson, Harrington

Some of your thoughts after Hearts 1-0 win over Celtic at Tynecastle.

Stewart: Well done to the Jambos.

Lindsay: Second game off the season hardly panic stations!!

David: That’s that long grass causing problems again

Graeme: Better and hungrier team won.

Bobby: Brendan- gone by crimbo.

We'll have some reaction from Celtic manager Brendan Rodgers to that setback for the champions shortly, as we start to turn our attention to the rest of the afternoon's action.

Hearts' two wins gives them the best record against Brendan Rodgers' Celtic, who have only lost five times domestically during his time in Glasgow.

Hibs and Kilmarnock closely follow with a win and two draws, while Aberdeen beat Celtic on the final day of last season.

Rangers, St Johnstone and Motherwell have each taken two points from Rodgers.

Peter Houston
Former Scotland assistant manager on BBC Sportsound

It was a goal fit to win any game. Through Lafferty's laces from 18-19 yards and no more than Hearts deserved.

From then, they almost made it two with Michael Smith. A big disappointment for Celtic with regards to not making the goalkeeper work.

Haring and Naismith were magnificent, and Ikpeazu, what a striker he's going to turn out to be for Hearts. He holds the ball in, he's quick, strong, he can get past defenders.

Michael Stewart
Former Scotland midfielder on BBC Sportsound

Celtic keep having to go back to the same well. At the moment, it's dried up. That's why they need to freshen up. That's what Hearts have done, and at the moment, it's paying dividends.

Chris McLaughlin
BBC Sport Scotland at Tynecastle

Massive and deserved win for a Hearts side who gave everything in another momentous tussle between these two.

Kyle Lafferty’s finish was sublime but they were excellent to a man. A tricky week for Celtic just got trickier ahead of a huge game in Greece on Tuesday.

Those who refused to believe cracks were showing may have to reconsider.

Hearts' decision to reject Rangers' recent £200,000 offer for Kyle Lafferty already looks like a wise one.

The Northern Irishman scored three times against the champions last season, among 19 in all, and his first goal this season was a belter.

Jubilant scenes at Tynecastle.

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That's it! Hearts have beaten Celtic at Tynecastle for a second season in a row.

Two wins from two from the Jambos, and Craig Levein's side are clear at the top of the Premiership for now.

Callum McGregor launches a free-kick from deep into the Hearts box. Mikael Lustig stretches for it, trying to play it back across goal, but it drifts behind for a goal-kick.

Michael Stewart
Former Scotland midfielder on BBC Sportsound

The problem for Celtic is that they've allowed the control of the game to be in the balance, and a wonderful goal from Kyle Lafferty has meant they've been left chasing the game.

If this result doesn't tell the Celtic board what Brendan Rodgers has probably been screaming at them for months - that this team needs freshened up - I don't know what will.

Bit of experience there from Steven Naismith, who cuts across Jack Hendry as they chase a long ball, draws the foul and the young centre-back is booked.