There's a full card of SPFL games this weekend, with Celtic, Hibernian and Forfar Athletic still boasting 100% records as we reach fixture round six.
Ladbrokes Premiership leaders Celtic are away to Inverness Caley Thistle on Sunday - live on BT Sport at 3.00pm - aiming for their fifth league win in a row but their hosts have taken four points from the last six after a poor start to the season.
Also on Sunday, Dundee and Aberdeen meet at Dens Park, live on Sky Sports with a 12 noon kick-off. Both teams have drawn three of their five Premiership matches and are locked together on six points in mid-table.
Second-placed Hearts travel to Perth to play St Johnstone in one of four Saturday fixtures and are seeking revenge for a 3-2 defeat at McDiarmid Park in the Betfred Cup last month.
It's third against fourth at Ibrox as Rangers aim to bounce back from their derby defeat at Parkhead against a Ross County side who drew with Motherwell last week.
There's a Lanarkshire derby at Fir Park as Motherwell take on Hamilton Accies - both teams are bidding for their second league win of the campaign and are separated only by goal difference.
There's a big game, too, at Rugby Park as Kilmarnock entertain a Partick Thistle side who find themselves at the foot of the table after losing to St Johnstone last week.
Hibernian are the leaders in the Ladbrokes Championship. Neil Lennon's men have won five out of five so far and have the best defensive record in the country as they prepare to host an Ayr United team who claimed their first win of the season last weekend.
Queen of the South have also made a great start and are just two points behind Hibs - they are looking to keep their good run going at home to third-placed Rovers, who suffered their first defeat last week.
There's an intriguing match in store at the Falkirk Stadium, live on BBC ALBA at 5.15pm, as Falkirk take on a Dundee United team one point and one place above them in the table.
Morton are seeking their first league win of 2016/17 as they prepare to host a Dunfermline side on a run of four straight defeats while bottom club St Mirren make the short journey to Dumbarton.
The leading trio in Ladbrokes League 1 are separated by just a single point, with leaders Brechin City ahead of Alloa Athletic and Livingston. City put their unbeaten record on the line at Livingston, who are the top scorers in the country, along with Alloa, on 16 goals so far.
The Wasps make the trip to Hampden Park to play Queen's Park while Airdrieonians and East Fife, who are among the chasing pack, clash at the Excelsior Stadium. Second-bottom Stranraer have the chance to leapfrog Albion Rovers if they can beat them at Stair Park while bottom club Stenhousemuir are up against Peterhead at Ochilview.
Forfar Athletic have made a flying start in Ladbrokes League 2 and enjoy a five-point lead at the top of the table ahead of Saturday's home game against Stirling Albion.
Clyde are in second place and head for Borough Briggs to face Elgin City, who are just a point behind the Bully Wee while Arbroath, who are fourth, welcome Annan Athletic to Gayfield.
Cowdenbeath and Berwick Rangers meet at Central Park and there's a big game at Meadowbank Stadium as bottom club Edinburgh City play a Montrose team just above them, with both aiming for their first win.
