Peter Houston's side will now take on Raith Rovers at Hampden for a place in the final.
Black played for Rangers, Motherwell, Heart of Midlothian, Portsmouth, Airdrieonians and Raith Rovers during his playing career.
Former Aston Villa defender Paul Browne has has been allowed to leave Raith Rovers to join Nuneaton Borough.
The midfielder started his career with Hamilton Academicals before spells with Millwall, Raith Rovers, Hibernian and St Johnstone.
The 26-year-old has been training with United while attracting interest from the likes of Plymouth Argyle and Raith Rovers.
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After the win over Raith Rovers, Bryan Gunn said McVeigh was doing all the right things during his trial.
Hibs had been unable to afford a new deal to keep former Dundee United, Ionikos and Raith Rovers striker Brewster.
"It will be something special, " admitted the veteran, who has also turned out for St Johnstone, Raith Rovers, Livingston and Falkirk.
Sutton, who began his career with Tottenham before heading for Raith Rovers and Millwall, joined the Buddies from Dundee in 2005.
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He first moved to Scotland in August 2000, signing for Raith Rovers from Huesca before moving on to Dundee then Ibrox.
But Bowman, who was part of United's winning side in 1994, says the Tannadice club won't underestimate Raith Rovers in Sunday's semi-final.
Thursday pitch inspections ruled out the fourth-round ties being hosted by Albion Rovers, Ayr, Edinburgh City, Forfar, Raith Rovers and Ross County.
Hartley, who started his career with Hamilton and also had spells with Millwall, Raith Rovers, Hibernian and St Johnstone, had been with Celtic since 2007.
On Tuesday evening, they will face First Division side Raith Rovers, followed by a trip to Premier League outfit St Johnstone on Thursday.
However, Partick Thistle against Raith Rovers goes ahead, as does Alloa v Livingston in Division Two after pitch inspections at Firhill and Recreation Park.
The pressure of Raith Rovers in chasing everything down contributed to that but I think we didn't have to concede either of the goals.
Dundee travel to face Dumbarton, Montrose host Raith Rovers, Morton are away to Alloa Athletic, Falkirk are at Albion Rovers' Cliftonhill Stadium, while promoted Ayr United meet East Stirlingshire.
Murtagh, who started his career at Hearts and also played north of the border on loan at Raith Rovers, spent two months on loan this time last season at Droylsden.
The prime minister's only declared financial interest was a "small number" of shares in Raith Rovers football club, by which it is stated that they are "not for financial gain".
Meanwhile, midfielder Beto Carranza is now back in full training after recovering from the knee injury that has kept him out of the Dundee side since the opening pre-season game at Raith Rovers.
And that has opened the way for a return to Fife for Nicholl, who had two spells as manager of Raith Rovers and will be in opposition to the Kirkcaldy club this coming season.
With Scott in charge, the Dark Blues won this season's Challenge Cup and lost only four league games, but last week they exited the Scottish Cup at the hands of quarter-final opponents Raith Rovers.
United overcame SPL leaders Rangers in their quarter-final replay at Tannadice, following a 3-3 draw at Ibrox, and Houston wants his players to to treat Raith Rovers with the same respect as they would a top-flight side.
It's a new start for Raith Rovers.
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But some at the Fife club are thought to be unhappy after 20-year-old striker Hyde's goal denied them a victory that would have taken the Pars above leaders Raith Rovers on goal difference at the top of the table.
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