Referees whistles are peeping around the country...

For whom will the May day sun shine?

Aberdeen must hope Hibs slip up if they are to set up a potentially nerve-shredding match when they meet at Pittodrie in their next game.

But the Dons are six points behind and 11 worse off in goal difference, have to visit Rangers on the final day of the campaign and were thumped 3-0 at home by Dundee United in their last outing, the Scottish Cup quarter-finals.

So Stephen Glass' side really have to win today in Livingston to have any chance of snatching third place - and a draw would confirm their place in the new European Conference League.

The good news for the Dons is that they are unbeaten in five visits to Livingston since 2004 and their hosts have just one win in nine Premiership outings.

David Martindale will be keen for his side to avenge their own cup defeat on penalties to the Dons in Glass' debut as manager as they look to stay ahead of St Johnstone in fifth place.

St Mirren defender Marcus Fraser has been injured during the warm up, with Conor McCarthy replacing him against Accies.

Two sides who progressed to the Scottish Cup semi-finals after thrilling penalty shoot-outs last weekend meet up in Leith.

Hibs, who edged out Motherwell, could wrap up third place for the first time since 2005 with two games to spare.

A draw might do and victory would all but seal it even if closest challengers Aberdeen match them.

After their even shock win over champions Rangers at Ibrox, Saints are without a defeat in six trips from McDiarmid Park and are unbeaten in their last three meetings with Hibs.

Indeed, they arrive in Leith looking for a third consecutive win over today's hosts having not lost at Easter Road in six visits since 2012.

Hamilton head coach Brian Rice is serving the first of a two-game touchline ban this afternoon.

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United manager Micky Mellon has decided to name an unchanged side after last week's impressive 3-0 dismantling of Aberdeen in the Scottish Cup last eight.

County boss John Hughes has made three changes to the team that suffered a 3-1 defeat at home to St Mirren last time out.

Keith Watson drops out of defence, while midfielder Ross Draper and striker Billy Mckay also make way as Coll Donaldson, Stephen Kelly and Blair Spittal come in to replace them.

Both Well and Killie lost unbeaten runs as they exited the Scottish Cup quarter-finals after penalty shootout heartbreak last time out.

Before that, however, today's hosts had gone four without a loss, leading to Graham Alexander being named Premiership manager of the month.

Meanwhile, Tommy Wright's Kilmarnock had gone five without a reverse as they start to pull themselves away from relegation trouble. But they are not safe yet.

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Bottom-of-the-pile Hamilton need points and they need them now.

Accies have gone nine games without a victory, eight in the league, suffered three straight defeats and have not beaten St Mirren, who are three undefeated, in nine meetings, including four this season.

The Paisley side will have their tails up after reaching the cup semi-finals and are in a tussle to finish best of the bottom six with Dundee United and Motherwell.

However, Hamilton have drawn on their last three visits to Paisley.

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Dundee United are unbeaten in their last six meetings with County, winning all three this season.

While the home side have suffered just one defeat in eight outings, but if they secure a win today it would be their first back-to-back victory since the start of November, when the Dingwall side were one of their opponents.

Second-bottom County, who sit two points behind Kilmarnock and three ahead of Hamilton, arrive without a win in five.

If you wonder why Kilmarnock manager Tommy Wright was so keen to bring Kyle Lafferty back from injury quicker than expected, you just have to look at the Northern Ireland striker's statistics. h

His 11 league goals against today's hosts, Motherwell, in Scotland’s top-flight are more than he has against any other opponent.

Stats also show what Hibs are missing today with an injury to Kevin Nisbet.

The recent Scotland debutant's 14 league goals have been worth 15 points to his side this season - the most valuable of any player for any club in this season’s Premiership.

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Dundee United assistant boss Stephen Frail tells BBC Sportsound: "We talked about changing the line-up because of next week's cup semi-final, but we felt the boys played so well that we wanted to keep momentum going.

"We want to attack the game this afternoon in the same way, but we anticipate a tough game. The semi-final next weekend will take care of itself."

Kilmarnock manager Tommy Wright says he did not expect Kyle Lafferty to be able to play against Motherwell.

"He was close to making it yesterday morning, but I made the decision at lunchtime that he wouldn’t make it," he tells BBC Sportsound.

"He did some work with the physio that went better than expected yesterday afternoon. We waited until this morning to see if there was any reaction and there wasn’t.

"He’s not 100%, but at 95% we can’t do any real damage. He was eager to play and, in that situation, I’ve got to play him.

"When Kyle told me he felt great, it’s an easy decision for me. He’s our main striker and one that’s got a lot of goals recently."

As for Danny Rogers starting in goal, Wright adds: "Danny has been training well, Colin Doyle knew he didn’t do well on Monday night and I’ve got to be fair to Danny who has worked really hard and put him in."

Ross County manager John Hughes tells BBC Sportsound: "We know what's at stake. We know we have to be at our best.

"I expect that from my players, they can't be shrinking violets. United will be full of confidence after last week. We were coming here expecting to face to the same team they put out against Aberdeen.

"If we want to stay in the Premiership, we have to go and earn it. We've not been too far away at times and we've always got a goal in us."

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Aberdeen manager Stephen Glass tells BBC Scotland: "The players have been very good in training. They, like me, were very disappointed in last weekend, but they're ready to bounce back. We've got a game that's winnable, we know how tough it is, but we're ready for the challenge.

"I think there's a lot of change that's going to happen in the summer. That was always going to happen with the amount of players out of contract and the quality of the young players coming through.

"It gives us an opportunity to the make the changes we want. That assessment is going on to the end of the season, the players know that."

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St Mirren make four changes from their Scottish Cup penalty shoot-out win over Kilmarnock.

On-loan Rangers defender Daniel Finlayson, midfielders Cameron MacPherson and Ethan Erhahon, plus German forward Collin Quaner, all start.

Dropping out are Conor McCarthy, Jamie McGrath, Ilkay Durmus and forward Lee Erwin.

Midfielder Ronan Hughes misses out for bottom side Hamilton through suspension after being sent off against Motherwell. Captain Brian Easton is also out through injury.

Midfielder Reegan Mimnaugh and forward David Moyo start.

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Motherwell will have been grateful for nearly a week-long rest after their dramatic penalty shoot-out defeat in the Scottish Cup by Hibs, but manager Graham Alexander has made three changes to his side.

Tony Watt made a massive difference after coming off the bench against Hibs on his return from a heel problem, but the striker once again has to settle for a place among the substitutes.

Wingers Jake Hastie and Steven Lawless are both handed starts, while 34-year-old midfielder Sam Foley also comes into the starting line-up.

Robbie Crawford and Mark O'Hara drop out of midfield, while young defender Tyler Magliore returns to the bench.

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The big news for Killie is that star-striker Kyle Laffertyreturns from injury, which comes as a great surprise as manager Tommy Wright told the press yesterday that he would not be fit for today's game.

Whether that was mind-games or Lafferty made a miraculous recovery remains to be seen. He comes in to the starting line-up for George Oakley.

Chris Burke and Youssouf Mulumbu drop out of midfield, with Gary Dicker and Rory McKenzie taking their places. There is also a change in goal as Colin Doyle is benched after a bad mistake in the cup, with Danny Rogers taking his place.

David Martindale looks to be returning to a back four with Alan Lithgow, Efe Ambrose and Josh Mullin all dropping out of the starting XI that lost to Hibs nine days ago.

They've been replaced with Jack Fitzwater, Marvin Bartley and Matej Poplantik.

For Aberdeen, Dylan McGeouch and Connor McLennan replace Dean Campbell and Matty Kennedy in midfield.

There's also a start for 20 year-old Jack MacKenzie, who swaps places with fellow academy prospect Calvin Ramsay in defence as Stephen Glass' men look to improve after being knocked out of the Scottish Cup by Dundee Utd on Sunday.

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Hibs' top scorer Kevin Nisbet misses out - the striker has a "slight knock", says head coach Jack Ross - with winger Drey Wright replacing him.

Also making way from last week's Scottish Cup success over Motherwell is goalkeeper Matt Macey as Ofir Marciano returns.

St Johnstone boss Callum Davidson makes seven changes from his side's epic quarter-final shootout win over Rangers.

Goalkeeper Zander Clark - the hero at both ends of the pitch that night - is absent from the squad along with full-back Scott Tanser, who could miss the rest of the season with an ankle injury, and midfielder Liam Craig.

Defender Shaun Rooney, midfielder David Wotherspoon and strikers Stevie May and Guy Melamed drop to the bench.

Coming into the starting line-up are goalie Elliot Parish, plus James Brown, Callum Booth, Craig Bryson, Glenn Middleton, Michael O'Halloran and Chris Kane.

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Hamilton head coach Brian Rice, who starts his two-game touchline ban, explains captain Brian Easton's absence from today's squad.

"Brian picked up a knock against Motherwell and he's not been able to train since," he tells BBC Scotland.

"The team is picked, the boys know what we're trying to do and they're ready to go.

"It's good if you've got a little bit of nerves. It gives you a bit of an edge, but I'm fine, I trust the lads. I've every confidence they can go and put on a show.

"We need to win every game. We know how important it is to get three points."

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Game of the day in League 1 is at Broadwood, where Clyde can't afford a defeat - and probably need a win - against Dumbarton if they are to escape at least facing play-offs to avoid relegation.

The Cumbernauld hosts are two points behind the visitors with two games remaining.

Forfar Athletic need to win away to Peterhead - and hope Clyde lose their last two games - if they are to retain hopes of avoiding the drop.

Meantime, Montrose must win away to fourth-top Falkirk if they are to retain hopes of being in the promotion play-offs, while it is second against third as Cove Rangers, already assured of a place in the promotion play-offs, host third-placed Airdrieonians.