There is a full card of SPFL games on Saturday as league football returns following the international break and the IRN-BRU Cup.
The action gets under way with the Old Firm derby at Parkhead, live on Sky Sports with a 12 noon kick-off. Celtic go into the match having won three games out of three while Rangers are also unbeaten in the Ladbrokes Premiership this season.
Third-placed Hearts welcome Hamilton Accies to Tynecastle, while Ross County, who are fourth in the table, have home advantage against Motherwell.
Aberdeen entertain an Inverness Caley Thistle side who will be boosted by their first win of the season before the break while Partick Thistle and St Johnstone meet at Firhill. Dundee host Kilmarnock at Dens Park, with just a point separating the teams.
Ladbrokes Championship leaders Hibernian are aiming to make it five wins from five when they travel to play a Dumbarton team who beat them twice at the Cheaper Insurance Direct Stadium last season.
Raith Rovers and Queen of the South are also unbeaten and both are just two points behind Neil Lennon's men - Gary Locke's team face Falkirk at Stark's Park and Gavin Skelton takes Queens to Paisley to play St Mirren.
Promoted Dunfermline Athletic and relegated Dundee United meet in an intriguing contest at East End Park while Ayr United and Morton are both seeking their first wins when they square up at Somerset Park.
The big game in Ladbrokes League 1 sees Alloa Athletic - with 10 wins out of 10 in all competitions - face fellow relegated side Livingston at the Indodrill Stadium - the teams have netted 28 league Ã¢â‚¬Âgoals between them already.
Brechin City, who sit second in the table, welcome Airdrieonians to Glebe Park and East Fife are up against Stranraer at Bayview.
Bottom club Peterhead host a Queen's Park side who have started well while Albion Rovers and Stenhousemuir - both still without a win - go head to head at the Exsel Group Stadium.
Forfar Athletic are the pacesetters in Ladbrokes League 2, with four wins from four, and travel to play Annan Athletic, who have won both home games this season.
It's third against second at Broadwood as Arbroath meet Clyde while fourth-placed Berwick Rangers take on Elgin City at Shielfield.
Stirling Albion are at home to bottom club Edinburgh City and Montrose are seeking their first victory of the season against Cowdenbeath at Links Park.