St Johnstone: Parish, Kerr, Gordon, McCart, McNamara, Wotherspoon, McCann, Conway, Tanser, Hendry, O'Halloran.

Substitutes: Sinclair, Davidson, Kane, May, Rooney, Booth, Olaofe, Robertson, Duffy.

St Mirren: Alnwick, Fraser, McCarthy, Foley, Tait, McGrath, Sheron, McAllister, Durmus, Morias, Obika.

Substitutes: Lyness, Baird, Erhahon, MacPherson, Connolly, Henderson, Jack, Jamieson, Dennis.

Michael Stewart
Former Scotland midfielder on BBC Sportsound

Image source, SNS

Youssouf Mulumbu is only on the bench this afternoon but could make his third debut for Kilmarnock after signing for another spell at Rugby Park after a year out of football having left Celtic.

Fellow midfielder Alan Power is out with a hamstring problem, while defender Ross Millen completes a two-game ban. Aaron McGowan and Brandon Haunstrup drop to the bench.

Defender Zeno Ibsen Rossi makes his debut after signing on loan from Bournemouth. Forwards Greg Kiltie and Nicke Babamba also come into the team.

As mentioned earlier, Dundee United are still without injured Scotland striker Lawrence Shankland and are unchanged from the side that lost late on to Celtic. Fit-again centre-half Ryan Edwards returns to the bench.

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Two sides looking to end runs without a victory meet in West Lothian.

Livingston have not won in nine games, their poorest run in the top flight since 14 without claiming three points in 2006.

Meanwhile, despite a promising start to the season in which they have lost just once and are unbeaten away from home, Ross County are without a win in three outings.

Billy Dodds
Former Scotland striker on Sportsound

Kilmarnock: Rogers, Ibsen Rossi, Broadfoot, Findlay, Waters, Dicker, Tshibola, Kiltie, Burke, Brophy, Kabamba.

Substitutes: Doyle, McGowan, Haunstrup, Dikamona, Pinnock, McKenzie, Mulumbu, Cameron, Whitehall.

Dundee United: Siegrist, Neilson, Connolly, Reynolds, Robson, Harkes, Butcher, Pawlett, Bolton, Clark, Chalmers.

Substitutes: Deniz, Sporle, Powers, McMullan, C Smith, Edwards, Glass, Freeman, Appere.

Image source, SNS

Lawrence Shankland isn't even fit enough for a place on the bench for Dundee United at Kilmarnock.

He hasn't played for four weeks now, which surely makes the striker a major doubt for Scotland's Nations League opener with Israel.

Scotland host Israel next Friday before travelling to face the Czech Republic three days later.

United manager Micky Mellon said earlier this week: "I spoke to Steve Clarke about it - he was always going to name him in the squad. But there will come a time this week where the question will be: yes or no?"

At the moment, it's looking like a no.

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The build-up to today's games is just starting on BBC Radio Scotland's Sportsound.

There's live coverage from the early game between Kilmarnock and Dundee United, with expert analysis from former Scotland strikers Billy Dodds and Julie Fleeting and with updates from the other two grounds.

Meanwhile, former Scotland manager Craig Levein and former Scotland winger Neil McCann are your experts as Hamilton host Rangers later.

Image source, SNS

After a mixed bag of European results, it's back to the Premiership beat for Scotland's sides this weekend.

It means that Celtic, who crashed out the Champions League, and Europa League victors Aberdeen and Motherwell do not return to league action until Sunday along with joint leaders Hibernian.

Rangers therefore have the chance to open up a three-point gap at the top when they visit Hamilton Academical later, but before then we have three other games kicking off at a traditional three o'clock.

Stay with us for the build-up, live commentary and post-match reaction from the four grounds, both online and BBC Radio Scotland.