Aberdeen v St Mirren - Saturday
- Aberdeen have won the League Cup six times, most recently against Inverness CT in 2013/14
- The Dons were runners-up to Celtic in the 2016/17 Betfred Cup final
- Aberdeen beat St Mirren 4-1 at Pittodrie in a Scottish Cup tie in January of this year
- Saints won the last League Cup meeting - a quarter-final in October 2012 - on penalties after a 2-2 draw at Pittodrie
Dundee v Ayr United - Saturday
- Dundee have won the League Cup three times, with their last success in 1973/74
- Ayr United were runners-up to Rangers in the 2001/02 final but have never won the trophy
- This is the first meeting between the teams since Ayr won 3-2 in Division One in April 2012
- Ayr won the last League Cup clash 4-2 at Dens Park in a second-round tie in 1991/92
Dunfermline Athletic v Heart of Midlothian - Saturday
- Hearts haven't won this trophy since season 1962/63
- Dunfermline have never won the League Cup but have been runners-up three times
- Dunfermline won on penalties after a 2-2 draw at Tynecastle in last season’s group stage
- The teams last met at East End Park in April 2012, when Hearts ran out 2-1 winners
Livingston v Motherwell - Saturday
- Livingston were League Cup winners in 2003/04, beating Hibernian 2-0 in the final
- Motherwell's sole League Cup triumph was in 1950/51 when they defeated Hibs 3-0
- Stephen Robinson's side reached both domestic cup finals last season
- The last meeting between the teams saw Motherwell win 2-1 in a League Cup tie in September 2013
Partick Thistle v Celtic - Saturday (BT Sport, 12.30pm)
- Partick Thistle famously won the League Cup final of 1971/72, beating Celtic 4-1
- Celtic have won the trophy 17 times, including in each of the last two seasons
- Celtic won the last League Cup meeting between the teams 6-0 in October 2014
- Thistle's last win over Celtic was in May 1995 - 3-1 at Hampden in the Premier Division
Queen of the South v St Johnstone - Saturday
- Queen of the South’s best run in the League Cup is the semi-finals
- St Johnstone have reached two League Cup finals but lost to Celtic and Rangers
- Queens won 2-0 at Palmerston in a Scottish Cup tie when the sides last met in February 2015
- Saints won the last League Cup encounter 3-0 at McDiarmid Park in September 2010
Hibernian v Ross County - Sunday
- Hibernian are three-time winners of the League Cup - 1972/73, 1991/92 and 2006/07
- Ross County claimed the silverware in 2015/16, beating Hibs 2-1 in the final
- Ross County won on penalties after a 0-0 draw in Dingwall in the Betfred Cup group stage last season
- The only Premiership encounter at Easter Road last season was a 2-1 Hibs win in December
Kilmarnock v Rangers - Sunday (BT Sport, 12.30pm)
- Rangers have won this competition a record 27 times, most recently in 2010/11
- Kilmarnock's only League Cup final success was 1-0 against Celtic in 2011/12
- Killie won 2-1 when the sides last met at Rugby Park in December
- The last League Cup meeting was the 2010/11 quarter-final, which Rangers won 2-0 at Rugby Park