Last summer Scottish defender Andy Webster used the ruling to move from Hearts to Wigan.
The Dons played the last 30 minutes with 10 men after Davide Grassi's sending-off for kicking Andy Webster.
Andy Webster found the net for United but the goal was disallowed for a foul by the former Hearts man.
Andy Webster, on loan at Dundee United from Rangers, is in the squad alongside fellow Tannadice team-mates Garry Kenneth and Paul Dixon.
The addition, on a season's loan, of Andy Webster will give United a combination of quality, strength and poise at the back.
United, looking to build on last weekend's 4-1 thumping away to Falkirk, brought Darren Dods into defence for the injured Andy Webster.
New signing Andy Webster made his second debut for the visitors, replacing Ismael Bouzid, while Lee Wallace came in for Adrian Mrowiec.
Andy Webster's low drive restored Hearts' lead with seven minutes left and substitute Rudi Skacel blasted another on the break in stoppage time.
Liam Craig forced MacDonald to parry a ferocious free-kick over the crossbar after Andy Webster had hauled back Francisco Sandaza 25 yards out.
Dundee United manager Peter Houston was again without defender Andy Webster through injury, with Sean Dillon handed a start in place of Michael Kovacevic.
Andy Webster headed into the net from another Conway free-kick but the referee had already blown for a foul by the Dundee United defender.
Rangers are without defenders Madjid Bougherra and Andy Webster, while midfielder Maurice Edu and strikers James Beattie and Nikica Jelavic are all still missing.
According to Rotten Tomatoes, only two major film critics have reviewed the film, Andy Webster at the New York Times and Joe Leydon at Variety.
FORBES: The Right Could Make '2016: Obama's America' A Quiet Hit
That would follow a precedent set by the former Hearts defender Andy Webster, who terminated his contract at Tynecastle at the end of the 2006 season.
BBC: SPORT | Football | My Club | Chelsea | Grant confident Lampard will stay
The United striker had avoided punishment following a first-half clash with his former team-mate Andy Webster but Goodwillie was booked after a heavy challenge on Black.
And slack play by Andy Webster was partly to blame for the opener, although Darren Mackie and debutant Marshall still had some work to do to fashion the scoring opportunity.
Steven Whittaker occupied Smith's usual left-back position in the absence of Sasa Papac, while the veteran Christian Dailly was on the right and Andy Webster came in from the cold to sit on the bench.
The home side's lead was then extended when Andy Turnbull's outside break had the Leinster defence scrambling and the wing released fit-again Simon Webster who scored in the corner.
应用推荐