St Mirren manager Oran Kearney makes three changes from the midweek defeat to Motherwell.

Stephen McGinn, Anton Ferdinand and Simeone Jackson drop out, and in come Cameron MacPherson, Greg Tansey and Ryan Flynn.

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Dundee United make just one change from their 2-1 win over St Mirren's Renfrewshire rivals Greenock Morton.

Callum Booth is replaced by Jamie Robson at left-back.

Hibs winger Daryl Horgan returns after missing two games with a leg injury and deadline day arrival Marc McNulty gets his first start.

Ryan Gauld drops out with an injury as does Darnell Johnson, who hurt himself in the challenge with Celtic's Emilio Izaguirre that earned him a notice of complaint from the SFA.

Caretaker boss Eddie May confirms that Hibs will contest the two-match ban.

Raith Rovers are without the injured Lewis Vaughan, who scored a hat-trick against Dunfermline in the last round.

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This one is a repeat of the 1987 Scottish Cup final, when an extra-time strike from Ian Ferguson took the trophy back to Paisley after an effort from United's Iain Ferguson was controversially disallowed.

St Mirren could be forgiven for not being fully focused on the cup, given their perilous position in the Premiership but any kind of win would be a welcome lift for a side that has lost four league games on the spin going into this one.

United boss Robbie Neilson completely overhauled the squad at Tannadice in Janaury and results have piked up with three wins from the past four outings in all competitions.

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Raith Rovers manager John McGlynn tells BBC Sportsound: "Hibs are sitting eighth in the Premiership, the top league, and ourselves, we're sitting second in League One and Hibs are at home, so that's a massive advantage as well. That's why Hibs are big favourites today."Outside Kirkcaldy and our dressing room, there's probably not many tipping us but you know, underdogs have their day."

East Fife are ticking along nicely in League One and took care of Championship side Morton in the last round. Darren Young's side have won six of their past seven outings in all competitions.

After a sticky start to his reign, Partick Thistle boss Gary Caldwell is going in the right direction, with their 4-1 Scottish Cup win over Stranraer providing the springboard for back-to-back league wins over Queen of the South and Inverness CT.

These two have already met this season, with the Fifers prevailing 2-1 at home in the Challenge Cup.

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Bobby Madden is the referee at Easter Road today and will no doubt be hoping for a quieter match than Wednesday's Premiership encounter between Aberdeen and Rangers, in which he sent two players off and awarded two penalties.

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Hibernian: Marciano, Gray, McGregor, Hanlon, Stevenson, Mallan, Milligan, Slivka, Horgan, McNulty, Kamberi.

Substitutes: Dabrowski, Whittaker, Nelom, Bigirimana, Shaw, Omeonga, Mackie.

Raith Rovers: Thomson, Benedictus, Murray, Davidson, Crane, Flanagan, Gillespie, Barjonas, Wedderburn, Dingwall, Nisbet.

Substitutes: Lyness, Duggan, Buchanan, Matthews, McKay, Watson, Smith.

East Fife: Long, Docherty, Dunlop, C. Watson, Slattery, Watt, Dowds, Davidson, Meggatt, Linton, Currie.

Substitutes: Terry, Dunsmore, Kane, Court, B. Watson, Bell.

Partick Thistle: Hazard, Elliott, Penrice, McMillan, Saunders, Anderson, Bannigan, Harkins, Slater, Fitzpatrick, Storey,

Substitutes: Sneddon, McGinty, Spittal, Doolan, Mansell, Wilson, Coulibaly.

St Mirren: Hladky, P.McGinn, Baird, Popescu, Muzek, Macpherson, Tansey, Flynn, Lyons, Dreyer, Nazon.

Substitutes: Holmes, Corbu, Erhahon, McAllister, Mullen, Jackson.

Dundee United: Siegrist, Clark, Safranko, Reynolds, Robson, Butcher, C.Smith, Harkes, Seaman, Pawlett, Connolly.

Substitutes: Laidlaw, Frans, McMullan, Fvie, Sow, Gomis, Nesbitt.

False alarm at Easter Road. A suspect package [a discarded white pudding supper that the seagulls missed?] has been dealt with. Kick-off will go ahead as scheduled.

It's kinda blowy out there... Storm Erik is fading but there are still gusts of 40 mph forecast for Edinburgh over the next couple of hours, which could make for some hairy moments for defenders at Easter Road.

The turnstiles for the away stand are not yet open after an "ongoing incident", says BBC reporter Brian McLauchlin.

Raith Rovers are bringing a healthy crowd with them across the Firth of Forth, so hopefully they all get in safely by kick-off time.

Yes, that's right, Raith Rovers have never won the Scottish Cup.

The Kirkcaldy team were beaten finalists in 1913.

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Of the eight teams playing today, only one hasn't lifted the famous old trophy before. You've got a couple of minutes to name them...

Just one game in the Championship this afternoon, with bottom-of-the-table Falkirk making the short trip to Alloa.

The visitors, unbeaten in four, will leapfrog Partick Thistle and the hosts with a victory but the Wasps have won three of their past four at home.

Image source, BBC Sport

Image source, BBC Sport

Half of the teams remaining in the Scottish Cup are in action today, with three more games tomorrow and a Highland derby to come on Monday evening.

Who will make it through to the last eight by close of play today?